:?: can someone tell me whare to find a old Tamagotchi :?:

Ummm.... Ebay? You know there really isn't a shop, but if you type whatever "old" tamagotchi you are looking for into ebay, I'm sure you can find someone who is willing to sell it. It really depends on what you are looking for. Are you looking for P1/P2 tamagotchis, v1, v2, tamagotchis, angelgotchis, etc? Here's a link if you're looking for a v2 tamagotchi (or at least I'm pretty sure it's a v2, because I haven't seen that specific design on the v1):
Click here!
Good luck and take care not to buy any costly fakes on ebay! :D

my mom does not let me on ebay

Well, they don't sell any of the old Tamagotchis anymore.
If you're lucky, you could find someone who's selling it or something. xD
Other than that, you're only able to buy them online. Otherwise, there's nowhere else to search.

Hmmmm.... welll, Mothra aka "Blue Haired Beauty" does sometimes sell any extras out of her collection on her site, tamangerie. Right now she's not selling, but if you check back every now and then, she might have something you can buy. However, if you mom doesn't let you buy online, then (because I'm pretty sure there aren't any in stores) the only way to obtain a vintage tamagotchi now is to either borrow or buy it from someone you know that owns one. :D

EIT: Thanks -Ra-, I guess I must have not seen that link! :D

I'm pretty certain she's still selling. Have a look at the link below for her list of items:

http://tamenagerie.com/sale.html

Ra,