Name 10 elements you have access to in macroscopic quantities as a
consumer on earth?

Most are available commercially in macroscopic quantities.

More prosaic ones include:
H, He, C, N, O, Al, S, Fe, Cu, Zn - that's 10.

H is hydrogen you can find this as bottle of gaz under pressure
He is helium same as above
C is carbon (the basic elements for organic molecules are C,H,O,N)
N is nitrogen (the main gaz in atmosphere is N2 about 70% in air)
O is oxygen (dioxigen is the gaz you use for respiration process about 20% in air)
Al is aluminium
S is sulfur (is is often found as yellow cristal or powder)
Fe is iron
Cu is copper
Zn is zinc

I assume your question is asking what elements can an average person
buy without much hassle in relatively pure form.
(1)Carbon - C - diamonds.
(2)Helium - He -  You can get tanks with helium from party supply
stores.  In fact if you do a search for helium tank of Froogle, you
should see some.
(3) Copper - Cu - copper wires.  (search froogle: copper wire)
(4) Aluminum - Al - aluminum wires. (search: froogle: aluminum wire )
(5) Tugnsten - W - the wire in you incandescent light bulbs is made with tungsten.
(6) Mercury - Hg - in old thermometers. 
(7) Argon - Ar - in some fluorescent bulbs.
(8) Iron - Fe - you can get iron fillings in some learning sets that
teach about magnetism.
(9) Silver - Ag - silver jewelry - you can get prety close to pure
silver in some of those (I think)
(10) Gold - Au - gold jewelry - pure gold is soft, so some additives
are added to the jewelry to make it hard, but there is a lot of gold
there nevertheless.

1.H as H2 (gas)          in compressed cylinders 300 cf for about $20 
2.He as He (gas)         same as above
3.Li as Li (s)Metal      chemical supply  <100 /oz   solid chunk or pellets
4.Be as Be (s)            "     "    "       "   "       "   "
5.B  as B  (s)semi metal  "   "      "         "         "   "
6.C  as C? (s)non metal    "   "     "      "     carbon powder 
7.N  as N2 (g)            in compessed cylinders as above
8.O  as O2 (g)                "   "      "     "
9.F  as F2 (g)              "  "    "   "     "
10.Ne as Ne(g)               "    "   "  "

Asalam-o-Alikum!!!

Camping stores often sell Magnesium striker blocks for starting camp fires. (Mg)

Lead, if you have some VERY old pipes around. You can also buy lead
foil or fishing lures. (Pb)

A jewelry store could also hook you up with some platinum. (Pt)

If you live in a basement, you may have undesired access to Radon (Rn)

Smoke detectors have very small amounts of (I think) Americanum in them.

If a consumer, for some reason wanted one, they could by a Silcon wafer (Si)

I can't think of a good source of Nickle, since 5 cent coins arent
really pure nickle.

Tin: Some specialty pipes (eg in the old chem building I used to
frquent) or perhaps some old tin cans would contain a lot of tin (Sn)

Neon (Ne) can be garnered from signs.

Thats it from off the top of my head.

This question depends on the phrasing.  I will answer it from a few
different angles, and you decide which one you're after.

First, which elements you can buy, relatively purely, in bulk, at any old retailer.

1. Helium for filling balloons
2. Lithium inside lithium batteries
3. Carbon as charcoal or diamonds
4. Neon in lights
5. Magnesium in camping fire starters
6. Aluminum as foil
7. Silicon in the CPU of your computer (doped, but infinitesimally so)
8. Sulfur as a topical medicine
9. Argon in incandescent light bulbs
10. Titanium rings
11. Iron as steel (acceptable purity in certain high-grade steels)
12. Copper as wire
13. Krypton in high output light bulbs
14. Silver (if you can avoid sterling)
15. Xenon in the most expensive light bulbs
16. Tungsten as the filament of incandescent light bulbs
17. Platinum (95%) as jewelry
18. Gold in Goldschlager liquor.  Jewelry gold will never be remotely
pure, but the stuff in the bottle is 24kt
19. Mercury in old tilt switches, if you can find them nowadays
20. Lead weights

Now, that said, there are many elements that you find isolated in tiny
quantities, as part of something else in everyday commerce.

1. Phosphorus is what catches fire on matches
2. Chlorine as free gas above bleach solution, along with other chloroxide gases
3. Chromium plated on auto bumpers
4. Nickel plated onto innumerable objects for corrosion resistance
5. Zinc as plating on galvanized steel
6. Germanium diodes
7. Niobium as plating on body piercing jewelry
8. Rhodium as plating on expensive jewelry
9. Palladium as the same
10. Cadmium as the anode of batteries
11. Tin as the plating of ?tin cans?
12. Iodine dissolved in alcohol as an antiseptic
13. Tantalum as part of artificial joints

Additionally, there are elements available for sale, however not
generally to the general public.  You?d want a good reason to buy any
of these, and they?d want a good reason to sell to you.

1. Hydrogen.  Seriously explosive
2. Beryllium makes beautiful airplanes and mirrors, but its dust is poisonous.
3. Boron is hard to isolate but commercially available
4. Nitrogen is a great gas to preserve items from oxidation
5. Oxygen is needed by some old folks, as well as the steel industry.
6. Fluorine is the most reactive material known, and those who possess
it know of its extreme danger.
7. Sodium is fun to throw in ponds
8. Potassium is also, but less recommended
9. Calcium can also ruin your day.
10. Vanadium is a vital component of tool steels
11. Manganese is, too
12. Cobalt is used for drill bits
13. Selenium is one of the most important photosensitive materials,
used in dusk to dawn lights.
14.  Bromine is a foul red liquid with few uses outside a lab

and so on and so forth.

Of course, none of these lists properly answers the question. 
Depending on one?s resourcefulness and access, certain elements may or
may not be available for easy sale.  Sensitive gases like oxygen are
the sort of thing in this category.  However, given this list, you
should have a good start on finding elements present in your everyday
life.