Here is how I have the Knobless Cylinders work on shelf (Minus the sticker on the binder!)
I googled pictures of Knobless Cylinder work and enlarged them and printed them. Here is the ones I made.
I also found some Cylinder Work Cards for free and printed them. I put them in sheet protectors and put those in a 1/2" clear binder so my kids will notice them.
I personally LOVE to do this work myself which draws lots of attention and interest!
Here is Bella working after she saw me working with these.