This was the first collaborative ATC project I did. About a year ago, I came up with the idea of creating an art piece for our church. I wanted an activity that anyone could contribute to whether they considered themselves an artist or not.
So this is the fun part, there are a few rules. The cards are 2 1/2 inches by 3 1/2 inches, like a baseball card. Usually, 2 artists would agree to trade either cards they have already finished, or to create cards and a specific theme and then exchange. For this, all the cards were organized into a frame together and displayed at our church.