Stickers Swaps.
You send 40 stickers
to a random member
and you receive 40 back!
swapstickers.club is a mail-based exchange club for people who collect stickers. Members send an envelope of 40 collectible stickers to a randomly assigned person and include the exchange ID so delivery can be registered. They can specify the sticker categories they would like to receive. Each exchange is an opportunity to add new stickers to a collection and share items with other collectors.