obviously, you need a deck of cards!
remove 12 cards from deck and put into 2 equal piles of 6, you will need those later
You need a paper cutter or knife
cut 2 equal lines down the sides, 1 cm from the sides equal lengths.
fold wings upwards and cut off center
do this over with the whole deck
you will have scraps and you can throw them away
get a hot glue gun
put glue on the outline of one cut card and place another on top and repeat
keep doing this with the whole deck, but you may not need all the cut out cards because the glue is thick. periodically check if the deck you are making will fit in the box.
take 1 card from the 12 and glue to the deck you made
glue another card to the other side
take the remaining 10 cards and evenly split it and put on each side in box, so if someone opens the cards they will think these are just regular cards. do not glue these!!!!! also, make sure you plac e the whole deck upside down so the hole is facing down
thats it!!! youre done! place money or other items in the safe. Enjoy!