This isn’t a product review since I haven’t tried one out for myself yet, but it absolutely falls into the “Smart Idea” category! Managing my keys is a ridiculous hassle at times (and I’m looking for those phone-cord bracelets so I can wear my keys to help prevent dropping them all the time). This looks like a useful solution for someone with limited mobility, stiff fingers, inability to grip tightly, etc. (Like me!) If I do acquire one, I will absolutely post a review. Available through ThinkGeek https://www.thinkgeek.com/product/f2d3/
This IS a great idea!