#IDEA 37. Fill multiple cleaned plastic jars with different scents and let your dog identify them by sniffing one particular scent you hold in your hand, and matching it.

#IDEA 40. Cut multiple small holes in a tennis ball and place treats inside. You can also place inside it a squeaker for extra engagement.

#IDEA 43. If you have a backyard, fill a big enough plastic container (depending on your dog's size) with sand for your dog to dig their toys out of. An indoor version would involve shredded paper or cloth.

#IDEA 38. Braid and tie multiple old t-shirts or jeans together into sturdy chew toys where you can hide pieces of your dog's treats or kibble.

#IDEA 41. Fill a shoe box with shredded paper or shredded fabric and hide your dog's favourite treats inside.

#IDEA 44. Get a long enough PVC pipe and drill a few holes into it for your dog to have to move around as each piece falls out.

#IDEA 39. Use a clean muffin tin and place in it multiple tennis balls or plastic cups on top of your dog's kibble to create a puzzle/slow feeder.

#IDEA 42. Get a 2 x 1-foot long cardboard piece (the sturdier the better) and cut thin holes, big enough to squeeze through a few of your dog's tug-and-pull rope toys, for your dog to have to pull out of while you hold the cardboard up.

#IDEA 45. Fold a few towels on the floor, and hide treats inside one of them. Guide your dog with a leash towards them and once he realizes which one has the treats, ask for a sit and reward with an even better treat from your hand.