I do digital headshot avatars for 5$, and yes, I can do variations (additional charging can be arranged depending on how many variations you’re looking for). Examples:
If however you’re looking for something more defined, i can also offer a cellshaded bust shot for 25$, but the addition of variations would go over your budget.
Silly expressions examples: https://www.furaffinity.net/view/36120535/
Payment via Paypal, sketch and coloured WIPs provided for approval. Feel free to PM me here at the forums if interesred, or note me on FA https://www.furaffinity.net/user/valery91thunder/ or email me at alkalinesparks [at] hotmail [dot] it.