I found this on another site.  Some of these are pretty good.

Uses for Pantyhose

Winterizing
You could take a thin bladed knife and stuff the hose legs into
cracks around doors/windows to keep cold air out.

Baby Quilt
If you sew, you can make a neat baby quilt. Find two coordinating
pieces of fabric and put them together, wrong sides together.
Next sew parallel seams about 2 inches apart. Now, put a safety
pin in the end of the nylon and pull it through one tube and
secure it on both ends. Keep on till all the tubes are filled.
Then sew around all 4 sides and then bind it. Presto! A neat
quilt, lightweight but warm and very washable and durable.

 Finch Feeders
The Finches love them as feeders. Just pour in Finch seeds. Use
Nyger/flax seeds, tie a knot to close it and hang in a tree or
plant hook.
 
Wear Under Pants
Where under long pants, nobody sees the runs then and you will
have extended their useful lifetime.

Shoe Shining
If you have shoes or boots that have to be polished use them to
shine shoes after brushing the shoes after applying polish. They
work great!

Makeshift Fan Belt
Also keep an old pair of pantyhose in trunk of car they can be
used for a fan belt if caught away from parts store, they won't
last long but maybe long enough to get to a phone or a parts
store.

Make Use of the Good Leg
If you were to happen to have one good leg still in your pair of
pantyhose and have several pairs of them you can try this. Cut
the leg off at the thigh on all the pantyhose legs with runs in
them. Then you can wear the two of the remaining good legs. You
can get some more good wear out of them before it's time to toss
them out. Then go ahead and use the pantyhose legs that you cut
off at the thigh for some of the uses that these other fine folks
have mentioned. Pantyhose aren't cheap, might as well get as many
wears out of them as possible.

Scarecrow Craft
I use old panty hose to make scarecrows or "people" for fall
decorations. Stuff 2 pairs of panty hose with leaves up to the
waist band. Attach the two pairs together by taping or sewing the
waist together. you will have two legs and two arms to put
clothes on. use your imagination for the head. Sometimes i will
stick a 2x4 inside the waist so it will be more ridged.

Cutting Down on Window Draft
I fill them with old worn out clothing, towels, jeans, just about
any type of material and put them in-between my window and
storm/screen window, it helps keep the drafts down.

Stuffing for Dolls
You can stuff cloth dolls or teddy bears with them. When they are
washed they dry more quickly than with the poly batting.
 
Straining Paint
My husband uses them to strain paint. They are great for getting
any stray matter out of the paint that you have just used before
storing for the next use.

Used as a Filter
People with fish tanks or live shrimp use them as pre-filters on
their filter intake tube. This way baby fish and baby shrimp
don't get sucked into the filter and ground up.

For Plants
I have used them for years to tie up, outside plants. They are
especially good to use on large scrubs due to their (the panty
hose) strength.

Storing Onions
They also will work for storing Vidalia onions for long term use.
put an onion in the toe and tie a knot between each onion in the
stocking. Hang the onions in a cool dry place. the onions will
keep longer with the air flow in the nylon. works well here in
the south.

 Various Uses
For the Washer Hose
I put one on the end of my washer hose and fasten with another
piece of nylon or elastic. You would not believe all the gunk it
catches from the washer, which eventually clogs your drains. This
idea came from a guy who cleans out the drains!

Cord Organizer
Also, if you have a lot of cables and cords you want to coil up
and hold together neatly, use strips of nylons to tie them
together. I use it for all my computer cords; black nylons on
black cords. Then I use a little hook on the back of my desk to
hang the nylon on and the cords are hidden between the desk and
wall. It also keeps them off the floor.

Storing a Garden Hose
This also works well to keep your garden hosed neatly rolled up
when you store them in the winter.

Storing Rugs
You can also tie them around rolled up area rugs when you store
over the summer. Nylons are a good alternative to rope or twine.