Subway Toys
Now we're getting to the good stuff, the stuff you can only find by combing through forum threads and strange articles.
In September 2002, Cartoon Network and Subway partnered for a Kids' Pak promotion at restaurants featuring Time Squad toys. The meal consisted of a sandwich, small drink, a cookie and the toy. There were 5 toys in total: Vortex Larry, Otto's Relativity Module, TS Quantum Probe, Scout Port Tuddrussel and an Otto rattle.
Here's a photo of all the toys together:

There are also rumors of a lost commercial promoting these toys, but nobody has backed up the claim and it may just be mere speculation.