Meet the Masters:
Here is another Art program. I have not seen it personally nor used it so I cannot vouch for it but you can get it 50% off through the homeschool buyers club right now. It is called Meet the Masters and there is a link to the product page within this link:
Sale at In the Hands of a Child:
I put this in the comments but wanted to add it in a post to make sure you all see it. HOAC has a sale of $4 off any project packs. That could be up to 80% off depending on the price. In the Thematic Early Childhood section I found Winter Sports that would only be $2 right now. This could go along with The Big Snow study I mentioned before or alone. Some books to use with it might be: Snowy, Blowy Winter; The Winter Olympics (True Book); or Tacky and the Winter Games.
This is 50% off through the homeschool buyers club also. I haven't used it but a friend has and I seem to remember that she liked it. Their Help for High School looks interesting for my olders, but they have for all levels: