Step 1: Things You Will Need...
1. Some water balloons. (got mine from dollar store, I believe.)
2. Some Kool-aid Bursts bottles. (I used only 5, real bowling has 10.)
3. A freezer.
4. A knife or something to cut bottles with.
5. (Optional) Tape. (For "Lanes")
Step 2: Fill the Balloons and Bottles
Step 3: Freeze Them!
Put Bottles and Ballons in Freezer overnight.