Motorcycle Pannier Mounts

I bought some panniers from eBay and they came with nothing to mount them to my motorcycle.
I set off prototyping some mounts and thought I would add them here in case they help.
It should clamp to a 12mm pannier bar

I am going to print these in ABS but I have prototyped in PLA and they seem to fit fine.
They should clamp a pannier bar securely but maybe a small piece of bike inner tube would create a seal for a tighter grip.

I used double sided tape to pre-mount them for lining up so they can be tweaked prior to drilling the final pieces.

The smaller flatter piece was for sealing some pre drilled holes in the bottom of the pannier so I will use some black silicone sealant to fix them on.

These are not finished but feel free to take them for non commercial use.