Here are dyed vintage baby cup shells. They measure under 1/4" across.
These are available in various size packs and prices.
Listed from left: Top
Light to medium yellow mix- 40+ per pack - $1.85
Pink-red mix - 40+ per pack - $1.75
Dark Brown - 35+ per pack - $1.35
Pastel pink - 35+ per pack - $1.85
Bright coral - 30 + per pack - 1.85
These are probably from the 1940-1960 era. These are getting very hard to find.