Our back door didn't have a handle or door knob, just a small metal attachment that you can hook to hold it open, and every time we closed the door it was such a pain to open, literally. It was hard to get a grip on the door and it just wasn't functional. Enter Sugru! I made a little knob/handle that splits in the middle so we can still hook it to stay open, it's flexible so now it's brilliant! Hera.