Older Kids Craft Projects?

Here is a pot my Liam made for our gerbil Yar to play in. I need to get the glaze specs from the teacher first, but he's super excited. You can't see it, but there is a little hole for the gerbil to run in and out of.

I have never really had a hard time coming up with crafts for my kids to do. Lately they are getting older (ok, not lately, they've always been getting older, however, I'm just starting to come to terms with it.)
Now, though, they are wanting to do more crafts that involve older stuff and more independence. Crocheting is something that they enjoy, but when they haven't picked it up in awhile I have to be right there talking them through it.
They love to embroider, but 2 of the 3 need me to re thread their needles every few minutes (I am going to get some of those self threading needles if I could just remember next time I go to the store.)
They use the sewing machine, but again, I still pretty much need to be right there. My oldest is the biggest lead foot when it comes to sewing (I really hope that isn't a premonition of the future car driving......)
They want something where mom doesn't have to be there. And honestly I do too. So often they pick during supper making time to want to craft. They have lots of free time then... I do not.
I absolutely love BellaDia's website The Crafty Crow and we have made some of the things on there, and have a few plans for others. But those are mainly for younger kids. As are most websites like that, that I find.
Does anyone know of one for older kids?
Right now the boys are hard at work on Tim's Father's day present. If it works out, it's going to be awesome! They just need to get done writing a bit faster I'm afraid. Otherwise the book won't be published on time. (Yes, I know that's a tease, but I can't give more away, my husband does sometimes read this.)
But summer is coming soon, and I don't want to run out of totally fun stuff for them to do. I also don't think I can handle more origami! Some of the things we already have planned for this summer are;

• tie dying (it's tradition)
  
• the boys are making a quilt for one of the grandmas


• freezer paper stenciling


• painting rocks (we're in the process of a little rock area in the front, so they want to paint rocks to put in it.)


• Making stepping stones


• Friendship bracelets


• Perler beads


• ??

Just to remind you (if you don't normally read this especially, my boys are 7, 9, and 11)

Any suggestions on crafts or sites to visit would be greatly appreciated!