A solar filter for the Celestron 8SE telescope can easily be made using a replacement dust cover, a 12" diameter piece of Masonite or thin plywood, some spray paint and a few screws.
1. simply cut out a 6" hole centered in the cover.
2. cut a 12" dia. disc out of the 1/8" plywood with a matching 6" hole
3. paint the disc flat black, then attach the filter medium to the disc with double face tape
4. attach the disc to the cover with 4 short screws.
The cover locks onto the scope so no tape or Velcro is needed and it will not fall off, endangering your eyes. Safe to use and inexpensive compared to commercially made units.