Pretty much it's a Roller Blade wheel attached to a bucket, so it's super cheap to make, and takes very little know how to make.
BY THE WAY: This is a really good design for other small animals that need excersie wheels. See the last step for some tips. And I'll add good tips from the comments and credit you too!
Awesome! I got featured! Thank you so much!
So since this is out there among more people, who may not have hedgehogs, you can replace the bucket with a mesh wheel for rats or even a plastic ones for hamsters! Again, if you have any questions, post them in the comments! But hedgehogs NEED a bucket so their feet don't get caught!!
Step 1: Materials:
*1 Bucket big enough for a Hedgehog to run in(I got my 5qt Wide Mouth Bucket from Home Depot, but you can use any bucket big enough for your hedgie to run on!)
1 length of the smaller diameter PVC Pipe(the diameter isn't too important; just not too thick, not too thin)
2 PVC Elbow Joints
3 PVC End Caps
1 PVC Three way joint
1 Roller Blade Wheel with exposed holes around the bearing whole.
1 Roller Blade/Skateboard Ball Bearing
1 Carriage Bolt; See Detailed Picture(I forgot the measurements of it, so take your Ball Bearing to your local hardware store and find a Carriage Bolt that fits snug, and isn't too short.) IMPORTANT!: Make sure that the nuts and bolt you got don't impede the spinning capabilities of the Ball Bearing, and have them only secured onto the inner metal ring.
4 Mini Zip Ties
Optional, but Recommended:
Dremmel Tool, but if you have your own way of cutting PVC and making precise holes in the bucket, go for it.
*: If you don't have a hedgehog, you can use one of those mesh wheels for rats, and the plastic ones for hamsters and mice.