check with a local guild, senior center, scout groups - even the public school art department.
i use strips that size for hooking rugs- and lots of (groups) do so also- there may be some ladies at the senior center (or a convelescent home/assisted living facility) that would love the strips to crochet into rugs or other items- i give alot of small scraps to the local pre-school & elementary school- the teachers are always grateful (& very creative) with donations- the 4-H & scout groups are pretty creative too- and appreciate donations (if you find the right person)