Onesie/vest popper extenders?

[Saffron]

Where to buy, and do they really work: Onesie/vest popper extenders? We have a lot of life left in my daughters vests and onesies, except for the fact that she is really tall. Has anyone used those little extenders you can get to add on to the poppers at the bottom of a baby bodysuit? How 'universal' are they really? Presumably the poppers on a newborn onesie are spaced a little differently than a 24mo onesie, or does it not really matter?

[snowboarder]

They def work with mothercare onesies - I have a few - got them from the Nappy Lady (as in the company!) but I think a lot of cloth nappy websites have them. Size of vest doesn't seem to matter....

[sanity girl]

I have some that work with most brands but not gap, h&m or green baby. I'm not using them anymore as I've given up on poppered vests - my boy has such a long body plus cloth nappies and would need 18 month size plus extension! PM me if you'd like them (for wine or swap)

[bumpy]

Bought mine from The Nappy Lady, so far don't seem to work on Sainsburys vests.

[sanity girl]

You can also get them from Fill Your Pants, who do free delivery. Theirs definitely work with M&S, mothercare, george at asda, john lewis, but not gap, green baby or H&M.