Puddin' Head Twins - Separated at Birth, Together at Last

When I was a kid, my mom had one of these, the orange one. I used to play with it, but never knew what it's intended purpose was. Years later looking through an antique store with a friend, I came across it. I knew I wanted it, but the price was a little high. On the way home, we stopped at a thrift store. Low and behold, there was one on the shelf for 50 cents.

Doing a little research, I found that his (their?) name was Puddin' Head and it was a shaker mixer for a dry pudding powder made by Colgate (perhaps to boost their toothpaste sales?).
Skip to a couple years ago at a garage sale and I come across his Bizarro-world (think Superman) brother ("Me am Puddin'head"). When I saw it, a younger couple was looking it over, debating its value. They were clearly scoping the sale for eBayable items. Now, don't call me a hypocrite. Yes, I too sell some of my garage sale finds on eBay. But that's not why I garage sale. If I didn't have a love for it, I'd never do it just for the small monetary gains I've made over the years. After deciding it wasn't worth anything, they put it down and I promptly grabbed it. They were one step ahead of me the entire sale, and passed on some good items including a couple Ben Cooper masks I snagged.

Anyway, back to Puddin'head. I couldn't find too much on the internet about them other than a few shots of the original packaging courtesy The Imaginary World: