Mexican-owned party supply stores are popular in Highland Park. This one caught my eye because of the variety of Halloween pinatas (ghosts, witches, Jack o' Lanterns, and stars with ghoulish masks) hanging out front. The store was small and dark (they didn't turn the light on). I spotted some balloons and gift wrap but didn't feel comfortable stepping inside a dark store.
Spotted some interesting ghoulish masks and Day of the Dead earrings outside - didn't see any prices. There wasn't much thought given to displaying the merchandise.
Jack o' Lantern pinata ($22 + $2 for a pinata stick): It's huge and looks homemade. It's priced about the same as other pinatas I found online but looks better.
They offer rentals of jumpers, chairs, tables, and helium tanks. read more