I am thinking:

Wooden nickles
Playing or Uno cards
LV gift items (like little NYNY Statue of Liberty's? or clowns from Circus Circus?)
Chocolate poker chips / candy
Pens and pencils
Inexpensive 'coin' wallets (they hold coins or chips. Aprrox 2.25 each)

I sent my beads/ cards and pens to the MOGH but will gladly donate $20 for shopping.
Please let me know if money would help and how to to send it!