Some of these are thanks to the fabulous Millie, aka @books_and_tea.

• lumos + nox
• fate + coincidence
• moony + padfoot + prongs
• swish + flick
• phineas + ferb
• jim + pam (+ cece + philip)
• harris + hubert + hamish
• sabrina + kelly + jill
• hugo + victor + laverne
• angeline + damian
• bert + ernie
• anne + diana
• tom + jerry
• bert + ernie
• sherlock + john (or, holmes + watson)
• paul + art (or, simon + garfunkel)
• calvin + hobbes
• josephine + gertrude
• pen + paper (or, paper + ink)
• rose + salt
• salt + sea
• franklin + eleanor
• gomez + morticia
• tom + huck (or, sawyer + finn)
• patsy + arthur
• zoot + dingo
• holly + michael
• fred + george
• albert + billy
• doug + lil
• holling + meryl lee
• pongo + perdita
• flotsam + jetsam (nn flo and jet)
• chantilly + lace
• arthur + guinevere
• quintessence + solitude
• cellar door + oleomargarine (or, selladore + oleomargarine)
• prose + poetry
• perry + heinz