This coaster depicts the sigil of House Lannister from the TV series 'Game of Thrones'. Before Season 8 of course
(I recommend, if you're printing one of these for yourself, filling the gaps in the body with photopolymer resin)
If you don't have a 3D Printer and you want one of these coasters please send me a DM and we can arrange for me to print one for you :)
Also check out my Etsy store - www.etsy.com/uk/shop/enterprisexddesign