I had some back in the day, they were made of alloy not steel and were so short that the indicator body was almost touching the headlight. I have found some similar in chromed steel complete with knurled ends, 2 short ones, 1 very short about 1” and the other 2” or so, both are in the states though. I’ll post the links to them when I get back on my pc as I can’t seem to do copy and paste on this iPad.
eBay number 183675183896 and eBay number 173478228476 is the best I can do.