I think maybe you should skin the test tubes so maybe with different colours and varying amounts of liquid so if you placed more than one it wouldn't look so similar.
Why even add the cuts :V and I still say you should either normal map the indentation on the blade, or just paint it into the texture and not have a normal at all.
The blade looks pretty perfect... but honestly the knife itself is kinda boring, I mean sure the shotguns and pistols are kinda bland but shouldn't there be something to make the knife stand out? Tape 3 of them together?
or perhaps have the blade taped on. the next hat you make should be for the sniper. he is in such dire need of good hats. something like this would be fantastic
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