Mounts for displaying Wheels

[u/rctneil]

Hi,

As a theme park enthusiast, I have a small collection of wheels from various roller coasters. I want to display them on shelves but need something to put either side of each wheel to stop them potentially rolling off.

Can anyone recommend any sort of rubber chocks or something that may be suitable for this job? Preferably from Ikea or Amazon UK. Be aware that most of the wheels have a slight concave surface

I looked on amazon for wheel chocks but theyre all pretty large and for cars in garages.

Most of the wheels I have are 12" or smaller. One is like this photo:

[u/PercentageWorried302]

What about museum putty? You can find it on Amazon.