A few years ago I made some bathing suits for my girls. It was hard to find cute 1 & 2 pc suits that weren't showing off too much skin, I made up the patterns as I went along and they came out pretty cute. I made some cotton interlock undies around the same time for my littles (3-4 yrs old), they held up really well. Not for me though, the closest I got was some soft jersey tank tops to sleep in.