Over the years, Doc has had several signature yo-yos such as the Super Scientist, the Super Sellout,The Hesitator the Bolt, the Signature Series Element X and the Signature Series Blaze. He also created a yo-yo spin-top hybrid called the P213. In 2006, he founded a yo-yo company with Phil Cox called Yes, Absolutely and the company released their first yo-yo, The End In addition he has also released a DVD, Unboring Science Volume I: Energy (directed by Mark McBride) and authored a comic book, Super Top #1 Comic Book in 2002, featuring a super-hero called Super Top.