Maybe it's way too early to tell, but do I have a couple of monstrose forms growing here? They're from a batch of Trichocereus bridgesii and Trichocereus spachianus, both appear to be spineless. I don't know if the bridgesii is even growing, it seems like it's shrinking to me, but that's probably the surrounding seedlings growing, lol.
Also have a crested delosperma ecklonis, doesn't really come across on the picture, but just wanted to share the oddity. Never really seen a delosperma throw a crest, but then again, pretty new to the whole genus and I haven't really looked for it either. Perhaps it's pretty common.
First two are of the funky bridgesii, next three of the spach: