I found the perfect pouch for small lenses (my CV 15/4.5 and 21/4, and the 50/3.5 Elmar) at Daiso, sort of a Japanese "dollar store" where most stuff is $1.50. They have a few stores in California. These pouches were designed for cell phones, apparently tiny cell phones are still popular in Japan. They came in 4 colors and fortunately only one was pink, so I got the black, dark blue and light blue to keep these lenses apart.