I always wanted to make one of those laser cut lake depth topographical cutout thingies. I finally got a chance to do one with a little lake in Michigan that my family has been around for some 70 years. I traced the depth contours and then cut out the different depth layers separately in proof grade maple. Then I did the same thing in acrylic and was able to put the acrylic pieces into the maple pieces to make a nice set of coasters. Merry Xmas mom.
Results are below.