Chastity belt, elbow tie, posture collar, and ball gag. That oughta do it.
imgur.com category @Louis_P_Reed
Her skill a wiggling is why she's my favorite (X-Post /r/BondageGifs_HighRES)
gfycat.com category @VeryTied
Muzzling a dom is the hard part. Undressing and using her is the fun part.
imgur.com category @Pr0naccount51
imgur.com category @GVAmp17