I have always longed to fly with the birds above the clouds in a hot air balloon (and then bungee jump off the side.) Recently I've purchased a few postcards to use as backdrops for my new for Makers Faire '09, steampunk hot air balloon necklaces.

 http://www.etsy.com/view_listing.php?listing_id=26635335
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Printed in Germany, mailed from Stamford, England to New England in 1911. This one reminds me of the fantastical steampunk collage creations by http://www.WinonaCookie.Etsy.com  
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A California Honeymoon. Postcard by Edward H. Mitchell, San Francisco, CA, 1919.
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French New Years postcard from the early 1900's, embellished with glitter & sequins. Feel free to use & peruse the images.