I keep receiving little paper prayer flags in the mail. Somehow I got onto a mailing list that encourages people to sign petitions for freedom for Tibet, and in each package is a little set of prayer flags. The letters are from Richard Gere and there's always a form letter from HHDL included too.
I hung up one of the sets two years ago and they're still in excellent condition, just slightly faded. I have them hanging over my front door. So even though they're paper and small, they seem to be pretty sturdy and when the wind blows, the blessings blow away too. Although this isn't conventional, you could even hang them over your shrine or anyplace where you can see them often to enjoy them.
I now have a collection of five sets or prayer flags and I would love to share them. If you're interested, please send me a PM or email me at: jlaura at buddhist dot com
If you include your mailing address I can send them right out to you.