Old propane tanks, the kind with the old valve or ones that are too rusty or unsightly for grill duty.
Just be sure they're empty, they made a very satisfying noise when hit..and are pretty tough untill you start hitting them with slugs or centerfire rifles.
__________________
"...with liberty and justice for all." (Must be 21. Void where prohibited. Some restrictions may apply. Not available in all states.)
|