For the cards "slider" functionality, I found the zip bag from our CTMH 4x6 Flip Flaps works perfectly!! Simply cut off the zip top portion, then you can cut the bag into five 1- 3/8" pieces, leaving you with a 1 3/8" x 5 - 1/2" loop of plastic. Another option is to cut a piece of 1-3/8" x 11 plastic and form it into a 5-1/2" loop. I prefer the flip flap bag method since it's quicker and allows me to use up all those flip flap baggies I have!
You can view the instructions I've put together for creating this slider card on my website!
Scrap ~ Chat ~ Create