"Date Pun" tag?

Thoughts on creating a tag for date puns, as mentioned in forum #75008?

I see a lot of images with 514 and they aren't limited to 14th of May. I'd prefer a tag that includes all images with those numbers whether they were actually drawn on that day or not. 763 as well.

Then a more general one could be number_pun.

date_pun implicating number_pun works for me.

Edit: Oh wait i thought we had number_pun already. Well if we on't come up with non-date number puns, I'll just remove number_pun.