Citrus Fruit Slice Coaster

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 these two things: [Citrus Slice](http://www.thingiverse.com/thing:1721009) and [Citrus Coaster](http://www.thingiverse.com/thing:2005457) 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.