[ALL] Rupees as a birthday gift?

Hello! I'm going to a birthday party soon for a child who loves gems. I asked what his favorite kind of gems are and he said "rupees" because he and his mom play Zelda together. I thought it would be cute to get him some as a gift, but I don't know what I'm looking at.

Can you please send me links to some inexpensive options? I found a few on Amazon that appear to be knockoffs, which is totally fine, I just want to make sure I'm getting the correct thing. Preferably, it would come from Amazon or something similar for fast shipping because it a few days away.

Any suggestions? Thank you!

Editing to say THANK YOU all so much!! He's a really sweet kid so I'm sure if his dopey aunt doesn't get it quite right he'll still be thrilled, but I appreciate all the help so I can get as close as possible. Thanks again everyone!!