Who said that you can only use kitchen utensils? How about going to the hardware store to get those things that in the kitchen store will cost you a bundle?
Instead of using a knife to break apart chocolate or frozen liquids, try this:
Keep a cheap chisel on hand. The chisel’s sturdy edge does a better job and keeps your knives’ sharp, delicate edges out of harm’s way. Place the chisel on chocolate or ice, angled away from you and using short quick strokes, chip into pieces.
If you are a baking buff (like me!) and have limited space in your kitchen drawers, then run and get a inexpensive plastic toolbox and store your baking gadgets (cookie cutters, measuring cuts, spatulas, etc.) in it.