My boys have a ton of costumes that they dress up in, and some barely fit anymore. When Halloween rolls around, they are allowed to choose 2 costumes each, and they are stored (with all the accessories) in a laundry basket in their room.
Since Solly likes to look out the window, you could get him some kiddie binoculars. My kids still like theirs.
Another fun one is this book on how to make paper airplanes. We bought it a long time ago, and it got shelved, and then my oldest brought it out and I've been busily making paper airplanes the last few days. It even comes with fun paper too.
If DS seems bored and needs to expend some energy, we will have a pillow fight. He will stand on my bed and we will have a good pillow fight...complete with lots of giggles.
that reminds me of our airplane game. Works best on the bed with small kids. What you do is lay down on the bed, bring your knees to your chest. The kid places their torso against your feet. Grab their hands and straighten your legs (or arm pits and slightly bent legs for smaller kids). Then just move your legs in different directions to fly around and don't forget the sound effects. Then bounce your legs or alternate bending knees for a little for some turbulence, then roll over on your side and let them crash into the bed.
Bumping this thread...I need some new ideas for activities around the house for my 4-year-old and 3-year-old while I'm home with them over the summer. We're having a great time visiting the swimming pool and library, but I'd like some new fun stuff to do around the house.
My kids used to love to "paint the house" when they were tiny. I'd give them old paint brushes and buckets of water, and they'd very industriously paint the house, the patio, the driveway, their toys, the doors, everything.