I used to use Silver alloys for welding bicycle frames together and they used to use silver alloys in Aerospace applications for welding together the titanium alloy structures for Vulcan Bombers together as well.

Silver has its uses and make for some very nice Sterling Silver cutlery as well.

https://en.wikipedia.org/wiki/Sterling_silver

Try asking the wife for their gold jewelry to sell for some gardening tools/bags of fertilizer etc and see how far you get!