Several Hometalk members have created projects turning blinds into roman shades. Here's the link so that you can read them all and benefit from everyone's tips. :) Wishing you the best.
Try that pin! https://www.pinterest.com/pin/690669292833865623/?nic=1
Hi Lisa, this is a very nice tutorial. https://www.hometalk.com/43431821/how-to-turn-a-wood-blind-into-a-roman-shad