Play NYT Connections Puzzle #661 Sat, Mar 1

Find groups of four related words Need hints?

Solve NYT Connections puzzle #661 - Group 16 words into 4 categories: HORSESHOE, LADYBUG, PENNY, SHAMROCK, TOLLBOOTH, TOMBOY, TOOLBOX, TOWBOAT, FIDDLER, MERRILY, PHANTOM, SUNSET, DRUGSTORE, MIDNIGHT, RHINESTONE, SPACE.