get the blow up pool and bring it inside of a little fun...I often use it so we can paint and stuff in it with out making mess.

we also get blankets and make cubbie sunder the kitchen table to play under

use the time to put a bed sheet up, put a white singlet on and let take some home made profession pics

Play dough...hmm would probably eat it so would stear clear on that still

get some old pics and make a book together were you can get him to draw on one side of the paper and the pic can go on the other

get some paint out and make a personal place mate by painting his hands and letting him stamp them on the paper. You can leave a virse like

Here are my hands so very small
for you to hang upon your wall
for you to watch as years go by
how we grow, my hands and I

You could also 'stamp' birthday cards out for relatives

Have fun and dont melt to much....Ive got 5 kids to entertain tomorrow at 42 degree's