Brief description: PVC crosses are stacked on top of each other and able to twirl around an eyebolt. Treats can be placed or smeared inside each opening, requiring that the chimps manipulate the PVC crosses to access all of the treats inside. These are placed on the outside of the caging to increase difficulty level.
Materials: PVC crosses, eyebolt, S-hook, chain, locking nuts and washer.
Assembly instructions: Drill holes in the top and bottom of each PVC cross in a straight line. Insert eyebolt through the first PVC cross, then add a locking nut underneath the first PVC cross, being sure not to tighten the locking nut too much so that the PVC cross can still freely spin around the eyebolt. A second locking nut can also be added here, to increase the spacing between PVC crosses and ensure each one is able to spin easily and independently of one another. Add the next PVC cross, followed by a washer and locking nut. If desired, longer eyebolts can be purchased to allow for more PVC crosses to be added to each puzzle. Use the S-hook to attach the eyebolt to chain to allow the device to be hung from the caging. If desired, add firehose over the chain.
How to use: Apply treats to the inside of each hole in the PVC crosses. Peanut butter, pudding, honey, or other sticky substances work particularly well. Hang up on the outside of the caging for the chimps to work on. Tools are not required, but could be given if desired.
Price: You can purchase a 10 pack of 2″, schedule 40 PVC crosses for $50, and a 1/4″ x 8″ eyebolt for about $6 per eyebolt (which makes it about $16 per fidget spinner, without cost of chain, nuts, and washers).
