Popsicle sticks can also be found inside of popsicles. ;)
There are also the white plastic strips which can be found in the garden department of any hardware store, or you can even cut strips from a used plastic milk jug.
Oven drying can still work. A lot of ovens can go below 200 in the "warm" territory, and with the oven door open it should be able to work as I suggest here:
http://www.scottrobertsweb.com/Ultimate-Guide-to-Drying-Hot-Peppers.php