I'm fairly certain these are both things that Blockland can do but I can't find anything regarding how.
I remembered in particular this from a long long while ago
Yay orientParticles works again! Thanks Badspot for fixing it up good as new.
Turns emitted particles into Z billboards, rather then full-on billboards. The stuff in that pic I just posted is not possible with regular billboarded particles.
But I can't find anything anywhere on how to actually employ these effects?
Also, have DTS billboards ever been added back in? If not, consider this a suggestion/request for that, I guess.