I saw a few different Peanuts ideas, but no coasters. Created using https://www.thingiverse.com/thing:2248070 as the base Snoopy.

All rights to Peanuts.

I do this for fun and no support is required. However, people have requested a place to donate. if you want to donate use my PayPal linked through Thingiverse or use an amazon affiliate link:
Amazon general purchases:
https://amzn.to/2Za6vpE

Print instructions

I used Hatchbox white and 3D Solutech Black, performed a manual filament change.