I don't know GitHub very well, so apologies in advance if this isn't the right place for this.

I used your existing textures for the items as a base and altered them to be slightly more in-line with Minecraft's art style - as well as making a few rotated bandage/plaster recipes for convenience - for my private server. I was pretty happy with how they turned out, so, perhaps presumptuously, I considered you might like them enough to fix them up for the actual mod.

I don't know if that would be anything you're interested in, but I'll upload them here for review if you get some time.

Textures:

Recipes (change back to .json of course):
bandage.txt
bandage_b.txt
plaster.txt
plaster_b.txt
plaster_c.txt
plaster_d.txt

I also changed "item": "minecraft:string" to "tag": "forge:string" in the recipes so they could utilize any modded version of string - don't know if the default limitation was intentional or not. "tag": "forge:wool" might also be commonly used but I haven't looked into it.

I ended up changing textures, but I used different ones.
See 99d2ec2

The recipe changes look interesting, thanks for that! I hope I have time to do a more detailed look at it soon-ish.

I don't think I will include your textures though, cause I still like my own, but maybe that's just me being not objective.