If you add me without commenting here first, I will decline.

Knife history:
Huntsman Knife | Scorched (MW)
Butterfly Knife | Scorched (BS)
Butterfly Knife | Night (BS)
M9 Bayonet | Stained (FT)
Karambit | Scorched (BS)
Gut Knife | Doppler (FN)
Butterfly Knife | Urban Masked (MW)
Gut Knife | Tiger Tooth (FN)
M9 Bayonet | Case Hardened (BS)
Gut Knife | Marble Fade (FN)
Butterfly Knife | Crimson Web (FT)
Huntsman Knife | Crimson Web (FT)
Gut Knife | Fade (FN)
Butterfly Knife | Night (FT)
Flip Knife | Slaughter (MW)
Huntsman Knife | Case Hardened (WW)
Gut Knife | Doppler (MW)
Huntsman Knife | Case Hardened (BS)
Butterfly Knife | Stained (FT)
Karambit | Safari Mesh (BS)
Falchion Knife | Slaughter (MW)
M9 Bayonet | Crimson Web (BS)
Karambit | Forest DDPAT (BS)
M9 Bayonet | Safari Mesh (FT)
Flip Knife | Night (FT)
Shadow Daggers | Blue Steel (WW)
Bayonet | Ultraviolet (FT)
Huntsman Knife | Blue Steel (MW)
Butterfly Knife | Case Hardened (BS)
Bayonet | Blue Steel (WW)
M9 Bayonet | Stained (MW)
Butterfly Knife | Crimson Web (FT)
Shadow Daggers | Slaughter (FN)
Flip Knife | Doppler (FN)
Bayonet | Doppler (FN)