Start by laying the blinds flat on the floor. Then, take your scissors and cut all of the ladder strings on both sides of the blinds. These are the strings that keep all the blinds connected to each other.
Then, separate a few slats so that you have enough to cover the entire length of the window with each slat resting seven inches apart. You’ll only end up using a handful from the amount you have.
Then, take the rest of the slats you’re not using and snap off the ends. This will make it so that you can slide the pieces off of the string without having to cut any more strings.
Take the remaining handful of slats you set aside, which should still be attached to the string, and spread them out on top of your fabric choice.
Fold all four edges of the piece of fabric around the corners of the slats and use the mod podge to glue them down.
Once you have everything glued, secure the folds with clothespins so that the fabric doesn’t move while it’s drying.
When you’re done, just hang the blinds up the same way you took them down and see how well your new roman shades works!