you throw a boomarang and it comes back.

[Madara Uchiha]

OK i have gave this some thought yet i can't think of anything. So i decided to some to LFE and ask you guys, how to do it. Well the title explains what i want you to do, but its more advance. I want to make it so you throw a boomrang, it goes foward a couple of distances, then it somes back to the owenr, of the person who throwed the boomrang. also when it goes back to the person who threw the boomrang when it goes back near them, they should preform an action of catching the boomarang.
so i am hoping you guys will explain it to me ^_^
and i would just like to say thanks to the person who firgues it out