My version of the tee pee card. Instructions use a 3 1/4 inch square of card stock so you use a 3 inch square of DSP which is convenient for the 6 x 6 pieces. You can use 4 inch, 3 3/4 inch or 3 1/2 inch instead just adjust the size of the DSP accordingly.
Two pieces of DSP 3 inch squares
Glue one of the DSP triangle sides over a plain card stock side. Be sure you only add glue where the cardstock overlaps. Line up the edge by folding the top one over the bottom one to make sure it folds easily
Adhere the third piece of cardstock DSP section onto the blank cardstock on the piece already glued together
I use Velcro thin clear fasteners that are 5/8 inch and have 75 in a package ID number is 91302 and available on Amazon
Place both pieces of the Velcro dot together and place one glue side down into the non-scored corner behind a DSP section
Fold it so the DSP section covers the opposite blank triangle section press firmly to attach the Velcro dot
If done correctly the DSP side will have the Velcro dot adhered like this (sorry the photo is fuzzy)