I've made several rugs this year, crocheting 1-1/2" stips of cloth (mostly sheets from Goodwill). The most time consuming part is cutting the sheets, even with a rotary cutter, and then looping each strip end to end and rolling a big ball of "yarn" from the strips.
Finding color-combinations among sheets is fun. The design of the fabric isn't recognizeable in the finished project, but general solids/patterns/colors coordinate well.
They make fun gifts and it's a good stress reliever to keep my hands busy with fists-full of linty fabric (though clean up is a nightmare).