Customize "Wave to say hi" sticker on per-server basis

I'm apparently in the minority for this? But maybe someone else feels the same way I do.

I enjoy the sticker system Discord has, and if there's something I think is great, it's being able to make my own custom animated stickers. I would like the option to have the sticker chosen when clicking “Wave to say Hi" be something that I decided, myself. It could still be a random selection that I choose if you still want it to be random, but I'd like the option to decide what those stickers are with that quick-click wave. Additionally, being able to have my own personal default sticker to use instead of the wumpuses would also be great as well, thank you.