Free
It's free to download
Videos
Images
Documentation
Information
Spider's Web Coaster
By MakeALot
A stack of cup mats with a holder. Print in one colour, then change filament as the first "web" layer prints to a contrasting colour for a nice coaster for your Halloween party guests to put their glasses on.
Try Black followed by fluorescent for glow in the dark easy to find coasters :)
Free