OC Merch! - Keychain Chibis

First-edition prototypes for the chibi keychains I've been working on for a little while between college workload. 

They're between 1.5"-2.25" tall, depending on the character.
Following sizes are approximate.

Koujiro: 1.5" height
Ritter: 1.75" height
Kyoso: 2.25" height
Ira: 2.25" height
Roth: 2.25" height
Aaron: 2" height

Out of curiosity, would any of y'all be willing to buy these or pay for me to create a chibi of your OC?

My own OCs I think could sell for like ~ $5 each...
Custom characters more like ~ $8 each.

How do those prices sound?
Would it be something you'd invest in?
How likely would you be to buy such a thing?