Actually, I've heard that if you grow big enough for a good meto result, you can get to a pretty respectable size from pumping post-op. I've seen such an example on Transbucket - the guy says he can penetrate with it!

That's why I've been thinking about it, with an added twist:
The Tool Shed sells a "clit pump kit" with different sized cylinders. They also sell a separate vulva attachment that lets you pump the whole area. Helpful for scrotoplasty later on, thinks I, so am pondering a homebrew alternative - take the handle off a turkey baster, cut out the base, and a big enough syringe to make it a good 2-in-1
But yeah, thanks for the vid - I did see one that Ryan posted, so wondering if that's where he got the idea from.