Have you ever heard "Can't find it, Make it?". I have and I did after months of hunting 2T-3T onesie for my 20mth girl. I used my old slevelees tee, color coordinating binding from cotton knit purchased from opshop, snap buttons and spent 2 hours (dont have overlocker). Pretty happy with the result and definitely will make some more :)
More refashion projects on my blog.