Dick Blick also offers free art lessons? Geared toward school agers, these lessons turn otherwise intimidating processes, like silk screening, Secco or Shibori, into something a little less daunting - something even your kids could do - with the aid of printable pdf's and video tutorials. Plus, I know that when I browse through Blick's products, there are so many that intrigue, but I wouldn't know how to start using them. Each project links to the supplies needed where - imagine this - they can easily be purchased from Dick Blick! (This is not a paid endorsement.)
Try it. Who knows - your inner fresco-ist may have been waiting for an opportunity just such as this. Oh, and I guess you could also share these ideas with your children. If you're so inclined.