I wanted to make a practical gift to bring to my brother in Florida. They entertain a lot so I thought some tropical coasters would be fun. I got the idea from a few similar models but there were elements I wanted to change. First off as a coaster you want a spot where the water can collect, second I wanted a design where you could stop the print, switch filaments and continue. I started with white on the multi-colored ones.   Ninjaflex will not scratch your table.