These sounded interesting, so I decided to dig deeper.
Woodside square (McCowan & Finch): someone had cleaned them out before I got there.
Markham & Lawrence: someone had cleaned them out before I got there.
Kennedy & Lawrence: As of 4:30 PM Sunday (after my shopping trip), they had 4 left.
From the packaging, it appears that these are intended to be a regular stock item (note "DOLLARAMA" in lower left corner of B&W side). For a "one-shot" deal, they wouldn't be likely to go for a "house brand" label. As for how well they perform, here's my mini-review:
These are your typical coin-cell momentary-only keychain lights, with a minor twist - you have to supply your own keychain (but there is a hole for mounting on a keyring). With nearly-fresh batteries (don't know how often it was "tested" in the store), it was visibly brighter than, and had a beam width similar to, a Dorcy 1xAAA LED with a nearly-fresh (less than 15 minutes use) alkaline. If you're looking for a dirt-cheap "throwaway" light (replacing the batteries, even with dollar store parts, would probably cost at least as much as a new light), these are the ones to get.
In a slightly more detailed examination, the LED drew 60 mA (in another thread, someone measured the Dorcy, and with a fresh battery it pushed more than 100 mA through the LED). Since this light was brighter than the Dorcy (although the Dorcy would have some loss due to its lens) at a lower current, it appears to have a more efficient LED than the Dorcy. Running on one coin cell ("stock" configuration has 2 in series), it drew about 2 mA, and produced a dim, though usable, light. Over the past month or so, I have checked local (Toronto) prices for high-brightness white LEDs, and they ranged from $1.50 to $3.00 each. The Dollarama LED flashlights, at $1.00 each, are the cheapest local source for high-brightness white LEDs that I have seen so far - and they throw in a pair of CR2016 Lithium cells with each LED purchased.
These flashlights reminded me of a Wayne&Shuster parody of a disposable razor ad - "the blade is junk, the handle is a superior musical instrument".