[{quoted}](name=Sona Ping,realm=NA,application-id=A8FQeEA8,discussion-id=bKj2c5zm,comment-id=0002,timestamp=2016-03-22T14:32:42.304+0000)
Skin team Riot has already said, on the topic of why Zac had not gotten a skin for the longest time, that they do not want to do ideas like these because they basically amount to just selling recolors.
That is also in line with a policy that Riot had adopted long ago to not sell recolors to bring a higher level of quality to their skins, hence the lack of skins like Rusty Blitzcrank and Golden Alistar.
i don't imagine these as just 'recolors' in my head.
for example, on the lava golem zac, I could easily imagine some slight 'flow' of the oozing, somewhat fluid yet heavy material changing form or swirling around his body to make it look like it's flowing and maybe add some textile crust to add to the volcanic look.
fluffy cloud zac would be shaped in a more cloud-like fashion, not just be round-ish and smooth. he'd have that cloud-like border that's slightly wavy. heck maybe give him a smiley face because he's fluffy :3
the mud one is a bit harder to do i admit since brown can be a bit of a heavy color and hard to really texture while keeping his rather fluid and elastic form..... he might have to look like he's made out of the material that oozes from the ground when junkyard trundle uses his W, maybe a bit more green-brown mix to look like toxic waste? like i said this one's a bit harder.
abominable snowman zac: carrot nose, muffler, maybe some buttons. you know u want this for snowdown this year ;3