I bought 4" pots for my babies, but I probably should have gotten 3" pots. They are standard green plastic azalea pots. Any possibility someone has 3" pots and needs 4" pots?
I start leaves in the 3oz solo cups, which are about 2" across the top. Once the seedlings or babies from leaves are big enough, I have been transplanting them into yougurt cups, which are 3" across the top. They are just the right size for my little babies. I'm going to try and paint some of them and see how that works out.