LOL! So Im also having issue with my older boys! man.. im tired! LOL!

I have 4 boys (1 is my own) between the ages of 6 and 8. All after school. I allow them to play in our basement playroom, I stay up stairs with the little ones. There is a ton of little toys down there not appropriate for the little ones.

Since Feb when I started with the most recent 2 boys, there is nothing but wrestling, dog piling, rough houseing and most upsetting to me, a total lack of respect for the toys and activities that I have down there for them. (over the march break, my son was with his dad and the 3 other boys smashed, and I mean SMASHED all the lego that he had built with chairs!! and then lied to my son about it telling him the cats destroyed his lego) yesterday, the destroyed a Tool bench that I had down there that I swap out for a kitchen up here for the little ones. I constantly hear, "SHe's coming!!!" when I run down to check on them...

Anyhow, ive banned them from the basement for now, and they have to stay up sstairs with me with the little ones (this is going to be harder on me than it is on them I'll bet) I've spoken to the kids, and the parents, and the kids together with the parents several times and my own son who I know is a huge part of the problem.

So I've decided I need to have more structure after school.... prob is I konw they arent interested in crafts and activities like playdough and stuff.. would you make them do it? or give them the option, to do it? I dont want them just waching TV. What do you think? What would you do with them??