An old bolt action rifle, one of those with lots of wood to carve runes into. As an upside, it is simple enough that it could last a couple or rounds in a fight, or even a whole fight if very little magic is involved, without losing it's ability to shoot. Makes it easy to get around the "no kill with magic rule"
99.999% pure water, frozen as part of jewelry, kept in a container, whatever. The important part is just how difficult this is to make, as water disolves a little bit of whatever container it is in. The high difficulty of purifying water should lend it significant magical weight.
Henna tattoos, gets rid of the hole "permanently destroyed if you get hit" aspect. Would be good for spells that apply only to the body, such as a shield, that shields only you. Could even be an excuse for why you wizard has inhuman speed or the like, the tattoos increasing his reaction time. Also works well as an enchanted item
Winged sandals, especially for speed.
A vial containing the last breath of a dying relative, a newborn's first tears, the ashes of a hero, grave dirt from a mob boss, that sort of thing.
A ceramic statue of a flying pig
A bell.
A rope made up of a cat's footfalls, the beard of a women, the roots of a mountain, the sinews of a bear, the breath of a fish, and a bird's spittle.