Water theme coasters - multicolor

The coasters are made of three parts to allow multiple colors. I used black for the base, Blue and green for the color disk (contrast to the insert) and various colors for the inserts. The Base, color disk and blank insert are my design. The graphics for the animals are from thingiverse contributors as follows:

Three Starfish Plaques http://www.thingiverse.com/thing:803159
by pmoews May 01, 2015

Fish Design 4 http://www.thingiverse.com/thing:2166444
by wslab March 09, 2017

Blue Crab https://www.thingiverse.com/thing:2995716
by pdbq July 08, 2018

Geometric Dolphin https://www.thingiverse.com/thing:4274981
by RepliCat April 10, 2020

Sam the Sea Turtle https://www.thingiverse.com/thing:641946
by LizHavlin January 18, 2015

Nautilus Shell http://www.thingiverse.com/thing:1688497
by Jsuozzi42 July 24, 2016