Seriously do what I did! It's easy and very effective.
Zip tie them onto every other spoke and drill a hole for the valve stem. If you use the long zipties you won't even have to reach behind the wheel. The big plus here is that both your wheels and the plates are divisible by 4, so you can take advantage of the built-in ridges and space them to the spokes.
They should look like
this when done, but clear.
Simple always rules. Set it and forget it