Looking for 2.54cm steerer tube spacers

[Velocirapture]

I'm looking for spacers for a steerer tube with a threaded headset, that's been converted to allow a 'regular' stem to be attached. The converter is 2.54cm diameter, and is longer than the stem-clamp area, so although the spacers aren't needed for tensioning, they're needed to cover the extension. 

Anyone know where to source spacers with 2.54cm internal diameter? 
Thanks!

Edited April 26, 2022 by Velocirapture
Typo, cm not mm

[Nuffy]

I have a whole box full that was sent to me by mistake instead of 1 1/8th inch spacers. I’m in Zim, but I have contacts travelling to SA in the next few weeks, so if you can wait until then I’d be happy to arrange to send you some. Let me know what length you need, and if you’d prefer silver or black, and DM with address details if you’re keen.