Italian inventor Veronica Crisafulli has created a workable pair of telescoping high heels. You can quickly change their height to 5cm, 6cm or 7cm, and "this flexibility allows women to embrace fashion and function in a single shoe," Crisafulli's company, Trilly, writes. "No extra shoes or removable heels to carry around."
Trilly currently offers two different models in three colors, and they're going for $110 on Kickstarter, where they've been successfully crowdfunded. At press time there was still 25 days left to pledge.