If a pentagram isn't to your taste (that's a lot of baloney about the point being up or down - the points refer to Earth, Fire, Water, Air and Spirit - nothing evil about any of 'em!) then make a pentacle instead. It's a pentagram with a circle around it. A pentacle has no evil connotations in any religion. For wizard pendants you'd have been better off going with magickal or alchemical symbols. The only one of yours shown above I've ever seen used in any magickal rites is the ankh. Any runes would also be considered 'wizardy'.