Cool, great it works, thanks for letting me know, and also for the little manual for others you added :)

Another possibility would be to alternate e.g. red with brown giant mushroomblocks, that way they can never update each other ;) It also should be possible via command block means to help here, but a plugin would be great, if you happen to create one, let me know, and in my next Texture Thursday video on Youtube I'll feature it (after testing it thoroughly before, if it really works, of course ;))

A suggestion: If you could make it toggleable for ALL blocks, that'd be the best!
So e.g. I could chose which type of blocks should NOT update their blockstate, for example giant mushroom blocks.. but you could also make it so that e.g. no blockstate changes for other MC blocks.

So basically, a text-driven command like e.g. /suppress minecraft:name_of_block (or then again /unsuppress or whatever word one would take for it, I'm not native English ;)) would be great, so server owners can toggle each block they want! Not limited to giant mushroom blocks.
Maybe it'd be also possible for blocks which have different blockstates of Forge mods?

The numbered blocks are the default textures, I cannot add other people's packs instead as for copyright reasons (I wouldn't want others to "assimilate" ;) my graphics into their pack as well.

But it's very easy to change the block textures, the textures are numbered from 001.png up to 160.png; I had to delete 054.png, as this block was added to the naturally generated blocks, after I created that pack.

All you have to do is to take a texture you want, rename it e.g. as "001.png", and overwrite the existing numbered 001.png-texture with it! Done :)

If you want a more sophisticated texture where not all 6 sides of the cube are the same - e.g. like the grass or mycelium block - then you'll have to do some minor basic updating of the according JSON-file, but it's really easy to do so, just take a Vanilla block as example, and you'll figure it out easily.

Enjoy!

It's a lot harder in 1.12.x, if you already got the monster egg blocks, there would be also the command and structure blocks. If you don't need full blocks, just some decorative models, but without using armor stands with the usual diamond hoe predicates method, you could e.g. use a potted plant, if I'm not mistaken.. It should be possible to create a model for each single potted plant (if you don't need those for your map or whatever you're making).

Also, if you don't need all stair types, you could split them up, and you can get a fair amount of states for each stair type.. I I'm not mistaken, it should be 40 states (4 facing * 2 half * 5 shape types) also already in 1.12.x.. Obviously stairs are transparent though, so it really always depends which type of blocks you still need, but I guess with that little list it should enable you to get started to get more "junk" blocks for your project ;))

If you work on a SURVIVAL pack, NOT a map pack, then you should of course leave the stairs be, and people in Survival can't place Command or Structure blocks, and may also want to have their potted plants, not a model :)