Activity Toys By Food Type
Toys for dry food:
best for kibble, biscuits and other dry treats. Some semi-moist treats are fine (or air-dried meat treats), just nothing sticky! These toys typically need to be physically manipulated to make the food come out.
Toys for wet food:
these need stickier foods that dogs need to work to remove by licking and chewing (rather than dry foods which simply fall out). Don't forget you can use soaked biscuits, or sometimes mix dry biscuits into something sticky like goat's yoghurt - it depends a bit on the toy (lickimats have different filling requirements to activity feeders or kongs!)