the £1 should give you a clue, yep, a poundshop.
They don't always have them, but I refuse to pay 40p or more for one.
Horrendous prices.
A fry's cream thingy is 79p and isn't wrapped in silver foil anymore :-(
You're remarkably restrained, alba, but I won't have one, thank you - I can't abide pink innards in chocolates. I now know where to send my strawberry cremes!