This is right from their website www.gizandgad.com in the Selling to Us section
* Silver Dollars * Silver Half Dollars * Silver Quarters * Silver Dimes * Silver Rounds * Silver Bars
* Gold Coins * Gold Bars * Gold Rounds
* Old Coins * Foreign Coins * Large Size Paper Money * Small Size Paper Money * Silver Certificates * Gold Notes * Red Ink Notes * Star Notes * Old Notes
* Emergency Currency * Foreign Paper Money * Slab Coins * Error Coins
* And just about all other money related items
To buy things
Coins on clubpenguin are money. You need coins to buy things.
u can buy shoesand clothesand backroundshatsiglospuffles
no, it is free play but you can buy dragon coins and buy things you cant buy in the normal shop
So that people can spend them and buy things to live.
You donate it for coins for change. Or you can buy things.
Buy infinity blade 2
they bought things to eat like olives and nutritus things. animals to sacrifice to the gods and godesess
Buy clothing and furniture at the star plaza with star coins or dollars
You receive coins as a reward. You can then use these coins to purchase things (if you're a member) or buy postcards.
No you can buy coins or you can buy a upgrade card for 5,000 dragon coins
You can't buy coins in heartgold or soulsilver.