For more of a ‘ratty’ look, I’ve used sections of 1” rigid conduit nipples for fork/headset spacers. The dull gray just seems more ‘vintage’ to me. I cut mine to length with my Dremel.
https://www.homedepot.com/p/100176533
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https://www.homedepot.com/p/100176533
Sent from my iPhone using Tapatalk