Vest extenders in the shop seem to be selling well enough that I'm excited to have ordered stuff for three new sets in excitingly different prints! For now, there are still just whales and birdhouses in the shop, but soon they'll have new animal friends.
You get three extenders in a pack, all made of cozy pretty flannel with 9mm poppers/snaps that fit most bodysuits/vests from UK highstreet stores. Useful for doing up vests over cloth nappies, or if you've got a long baby. No more vests that are too big at the shoulders in order to do up underneath: problem solved.
Grab them in the shop. If you come upon this post later and the shop seems to be lacking, send me an e-mail and tell me to get on with it! ;-)