Have you ever experienced your bike wheels getting stolen? It is not fun to deal with. There are things you can do to keep your wheels safe from thieves. Nutlock can certainly help. It replaces your existing fasteners with custom ones that can only be removed with the key that you get in the kit. You just have to install it once, and you are set. The key fits on your keychain and is convenient to take around.
Nutlock can deter over 8 common theft tools and looks quite decent too. In fact, it is made of high-end corrosion resistant German steel. The developers are making many variations of each nut and key, so it will be very hard for a thief to get his/her hands on all the combinations. Like what you see? This project is already killing it on Kickstarter. You can still support it though.