Awesome pendants to have. It is a very dharmic way of spreading the Dharma and in particularly the efficacy of the Protector's practice. Personally, how good a pendant look, how expensive or the material is an offering to the Protector because all these are representations of our offering up our attachments and miserliness. For the receiver, if there are newcomers and are non buddhist and does not understand the significance of the meanings of pendants, it is still benefit in that they will have the dharmic imprints of the protector imprinted on them.
For practitioners, we must understand the significance of pendants and the qualities of enlightenment it represents. These are the qualities that we want to achieve and to these to touch our bodies in the form of a pendant is very blessed.