Cycle trailer hitch shim
thingiverse
A simple shim to fit onto readily available angled "Friends on Tour" trailer hitches (https://www.amazon.co.uk/Friends-Tour-Trailer-Bicycle-Trailers/dp/B001BYFX4W and similar) to make them fit properly in other trailers with larger (18mm) hitch points. Specifically in my case it was to fit with the Aldi double trailer/stroller (https://www.aldi.co.uk/2-in-1-kids-bike-trailer-stroller/p/097678266868600) Almost zero load is transmitted through this part, and a failure of any manner would not cause the trailer to detach so you can print it with whatever material you have. No supports should be required to print.
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