You mean those non-core weapons?
Tuba should probably be gold.
Rest - what I had in mind was to copy colors from weapons according to mapping made by "New toys" mutator - ie. if weapon X replaces weapon Y in mutator, X and Y would have the same color.
Jetpack - I suppose gray, fuel may have some brown/yellow accents.
If you have better ideas, feel free to use them, I'm throwing it out as it is.
And you have my sources for those items or are you doing them from scratch?
Tuba should probably be gold.
Rest - what I had in mind was to copy colors from weapons according to mapping made by "New toys" mutator - ie. if weapon X replaces weapon Y in mutator, X and Y would have the same color.
Jetpack - I suppose gray, fuel may have some brown/yellow accents.
If you have better ideas, feel free to use them, I'm throwing it out as it is.
And you have my sources for those items or are you doing them from scratch?

