Pinholes rhymes with:
buttonholes, blowholes, buttonholes, foxholes, keyholes, krumholz, loopholes, postholes, potholes, windholz
Pinholes sounds like:
painless, pamela's, panel's, panelize, panels, panels', pannill's, penalize, penalizes, penaloza, penelas, penn-hills, penniless, penology, phenolic, phonology, pinellas, pomology