Thank you for looking!
A barrel falls at collision and explodes. The rezzer will re-rez a barrel after 3 minutes.
1) Place a rezzer where you want to rez a barrel.
2) Touch the rezzer. A barrel appears on the top of the rezzer.
3) Walk into a barrel (or wait someone else to do so). The barrel will fall, and explodes with debris.
4) Debris will disappear in 1 minute. Another barrel will rez on the rezzer after 3 minutes.
Prims are Copy/Mod, scripts are Copy Only. A rezzer is 1 prim and a barrel is 2 prims. Debris is temp-rez, thus does not add to prim count.
If you rez multiple barrels (using multiple rezzers), keep them apart. They should be at least 7m apart.
See a video here:
http://www.youtube.com/watch?v=M4nnFPrSRD0
Try demo at my in-world store!
See item in Second Life