Time to ruin some outer planes creatures....
Barbazu (Bearded Devil) → Barfazu (Ugh! The vomit's stuck in his beard! Gross!)
Barbed Devil → Garbed Devil (Much more into the latest trendy fashion designers than evil.)
Bone Devil → Boner Devil (The visual's actually hurting my brain on this one.)
Chain Devil → Chair Devil (Look out - he's got a recliner and he's not afraid to use it!)
Hellcat → Hellcoat (A fiendish variant of the cloaker?)
Lemure → Demure (Much too shy to actually try attacking you.)
Pit Fiend → Lit Fiend (He's actually too stoned to do you much harm.)
Pit Fiend → Pot Fiend (Ditto.)
Dretch → Drench (It's always sopping wet.)
Glabrezu → Gabrezu (It'll talk your ear off, that one.)
Vrock → Frock (It's really quite fetching.)
Astral Deva → Gastral Deva (He's got no stomach for evil.)
Hound Archon → Mound Archon (Likes to hang around the middle of baseball fields.)
Trumpet Archon → Strumpet Archon (Sure to be found on the "Random Harlot Table" in Mount Celestia.)
Planetar → Plantar (He's concerned about the goodness in your sole.)
Johnathan