OK how about these. I'm not sure how evil these people are
£10.99 for a pack of 10
https://bankruptbikeparts.co.uk/pro...ader-presta-rim-8-5mm-to-6-5mm-10-pack-m40381
I used Google to do the searching so there's a bit of evilness in there I'm sure.
bankrupt bike parts are a great company to deal with,i have used them many times over the years!