High School Musical dance mat
Bakugan figures
Darth Vader mask
Baby Born, a crying baby doll with a flashing musical potty
A cupcake maker
Swim To Me Puppy
A singing Elmo
Fur Real voice recognition life-size golden retriever
Upsy Daisy from In The Night Garden
Ben 10 watch
Catcha Beast electronic game
My Life ("allows kids to create their own digital appearance by choosing their face shape, eye and skin colour")

Apparently, these all do exist and aren't merely Peter Serafinowicz inventions.