One thing I'd like to start with is to link to some of the incredible Blogs other people/Mums have been writing in which they've been sharing with the world their brilliant ideas on how to get their kids into crafts - I've been having a great rummage around for ideas, they're really brilliant, I just can't imagine how they get the time to write them!
Here is a list of some of my current favourites:
Modern Parents Messy Kids: http://www.modernparentsmessykids.com
Estefi Machado: http://www.estefimachado.com.br/ (this one's all in Brazilian but nothing a bit of Google Translate can't help with and also the photo's on her blog as a guide are great!
Handmade Charlotte: http://www.handmadecharlotte.com/simple-wonderful-diy-crafts-kids/