That's funny that you're asking about that right now :-)
I also came across my fork again and am just trying something out with it. I also found working with it very fiddly, but with thick yarn it really goes great and is much more relaxed.
I tried making a scarf; I can only show you these terrible pictures (it's still dark outside), which I just snapped quickly.
I crocheted two strips with the fork and crocheted them together lengthwise down the middle with a different yarn. On each outer edge, one row of single crochet, twisting the loops once each time; but they also cross over on their own already.
Yeeees, it's not finished yet, the ends are still hanging off, and the yarn might also be a bit toooo thick (it was for needle size 7-8). But this way it's fun, and it doesn't have to become a sweater right away. We'll see, maybe the next try with yarn for about needle size 5-6 will turn out better, maybe it will even become a pattern then.
Have a nice day, everyone
regards Caro