Thanks a lot - just what I needed!
Unfortunately the company based in Florida (?) didn´t sell to Europe, but through their site I was able to find the original manufacturer, and sourced a reseller in England that sold them at a higher price through eBay, but shipment is cheaper, so it adds up OK.
Yes, an interesting thought: it could be that the original feet are doorstops too, because they are much bigger than anything else I see underneath synths or keyboards.
Terje
After a bit of digging I found this:
http://www.westfloridacomponents.com/HW305APF10/Clear+Recessed+Rubber+Bumper+Doorstop+46mm+x+15.2mm.html
The dimensions are almost identical but it's clear. I would think there are
black ones out there somewhere.
Maybe the originals are doorstops also.
Best
Karl