Did you know: You can actually use statues for defense (not the ice statue boost). Here;s how it works:
1. Construct the tallest and biggest statue you can (preferrably GBE guardians or masterpieces).
2. Put it on the right of another tall statue (magma preferred) with one tile in between.
3. Put Boom Mines between the statues. They will be really hard to find, and with luck, may kill tons of enemies due to funneling. :P