Our tiny cosmetic-grade funnel measures 20mm (in the cup) and the spout adds another 15mm. Fashioned of black polypropylene, they are sturdy and re-usable, but are inexpensive enough to use once and throw away. We use them for transferring glass glitter.
Of course, you can make a (plastic) Tin-Man type hat, too!
Ours are not sterilized, so please just use them for your craft work.
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