Canada - Children's Bike Helmets in Vancouver

So, this is a pretty specific question, but I'm hoping that *someone* here has experience with it....we're heading to Vancouver with our 2 toddler/preschool age children, and plan on renting bikes to go around Stanley Park and the city. From renting bikes as just adults before, both my husband and I remember seeing bike trailers and children's seats for rent as well, but we don't know if any rental agencies also have children's helmets.

Has anyone here rented a bike in Vancouver with a child's helmet?

(We have them for our kids here at home, but would rather not drag them along with all of the rest of the gear if we can help it.)

It is supposed to be mandatory to wear a helmet (just doesn't seem to be enforced) so I imagine bicycle renters would make them available.

Might want to call a few agencies first though. Here's where you can look for a few:
http://city.vancouver.bc.ca/engsvcs/transport/cycling/faqcyclists.htm

Here are some I have seen:
http://www.bayshorebikerentals.ca/bs-rates.htm
http://www.simonsbikeshop.com/Robson_Shop/rentals.htm
http://www.rektek.com/

Awesome! Thank you so much, YVR Cockroach! I'll give those guys a call today.