Alright, so I got a set of the RiD Trains secondhand. Probably my favorite combiner team EVAR. However, Midnight Express (the one who forms Rail Racer's legs) and Rail Spike came in...... hmmm... less than optimal condition. Rail Spike is missing a thumb of Rail Racer's hands. However, that's something I can't really fix without a replacement part (and it's honestly not a huge deal anyway). Midnight Express, however, has some REALLY loose shoulder joints. I don't have clear nail polish, but I do have some super glue. I've heard that can work similarly to clear nail polish when it comes to tightening joints, so I tried it. It doesn't seem to be working too well... but there is a bit of tightening going on, however, not necessarily the way I want it to. SO, here's some explanation. If you're not familiar with the toy, here's the tfu.info link: http://tfu.info/2001/Autobot/MidnightExpress/midnightexpress.htm When ME's arms are lowered in bot mode, the ball joint is now actually nice and tight. However, raised at a 90 degree angle (to transform to train mode), it's loose as all hell, and slides off without even touching it... but only from the "top" of the socket, if it's at that angle. I'd take pictures, but I don't know how to do closeups with my camera - it's a Canon Powershot A540, if anyone wants to PM me any instructions on that. So how do I make his arm less loose, without locking the whole joint? OH! Right, what I did. I applied superglue to the socket, popped it on, and moved it around so the glue wouldn't lock the arm in place.