[B4 Sloth]

I am trying to do a quiz for my little'un school, for yet another sponsored event.

All answers are names of sweets, chocolates or lozengers!

Alocoholic dentures- wine gums
42.195 kms= marathon
9,10,11,12= after 8s......so what are;
A knock about for a prince?
Herb from cows?
Droning insects?
Build your own pet?
Star street (quality st has already been an answer).

Any ideas from you clever folk out there?