I decided to revist this model. Originally it was just to add the magnet template at the base but after looking at the model for sometime I decided to add a few more details that I couldn't add with the program in the past. Now with Tinkercad I was able to. Kind of wish Tinkercad had the ability to have an object kinda just form an array with mutiple instances which would make making those little hatch marks on the side of the medallion far easier. Either way it took some time and now I'm kinda satisfied after making some adjustments towards the thin walls.
I've added recesses on the bottom of this model to allow for the use of a .5"(in) dia , .0625" thick Magnet at the center of the base or 4 x .375" dia, .0625" thick magnet a square pattern. I figured some peope like storing their mini's in metal containers and use magnets to hold them in place rather than using foam core. Granted your welcome to use both options for extra safety.
Also if you're interested in the Magnets visit a site called MagCraft, I'll post the magnets I used as reference for this below:
NSN0640 .5" dia
NSN0732 .375" dia
This would be my 3rd model for the outstanding boardgame " Betrayal At House On The Hill " by " Avalon Hill Games. This is a model of the omen in game called the medallion. It was a rather simple design as the card in game only gave the description : " A Medallion inscribed with a pentagram. " So that is all that I did. I kinda wanted to get fancy, but I got scared with how Netfabb and shapeways would handle it. Luckily it wasn't too bad just some thin walls issues with the star which shapeways fixed just fine. What I really wanted to do was to add like some kind of rope connected to it via some loop, but the more I fiddled with it the more complicated it got. Oh well decided to just follow the K.I.S.S. Method, Keep It Simple Stupid. Enjoy this model in your next game of Betrayal At House on the Hill!