Last March, my daughter had a Western Theme camping at Girl Scout. The challenge was to create a swap "something" to exchange with all the girls between ages 5-17. Since I had Animal Kingdom cartridge we decided to do bookmarks.
We did three versions, the pig, the ruster and the horse.
Each animal was highlighted with chalks.
On the back she identify with a little sticker her name and troop number.
This was a cheap and cool idea since we had to do 75!