Here are some round robin ATCs on which I was the third player. This one was quite a challenge, as it's a funky subject matter, and the design took up a lot of space on the card. But when in doubt, Found Poetry usually does a nice job.
These also were quite full, so a quick sentiment and a few flowers worked well. Aren't the postage stamps wonderful?
These were very full, but luckily I had a few travel motif stickers (Tim Holtz set, I think), which worked nicely.