arts and crafts

Would you please tell me what glue I should use to reattach this corpus to this crucifix? (See photo.) Could you link me to the product from Amazon.com? Could you tell me what materials these appear to be? (Is it olive wood and stainless steel?)

Is this the weirdest question you've run into today? Perhaps. But it is what it is. Anyway, they look like this are are basically as big as your hand. And I collect them because I figure the empty bottles might be good for some kind of art project - and now I have a ton of them and they're...