If you can glue you should.
No need for solder anymore; now you have Wire Glue! It acts like a glue, it acts like a wire, it tastes like . . . just kidding – don’t eat it, and it’s stupendously-awesome-incredible. Put simply, it sticks bits together and allows electricity to flow between them. Wire Glue is great for repairing wires, gluing together electronic kits, and really, is a great safe (i.e. no heat) way of introducing children to electrical engineering. Get some now, and get in on the microcarbon revolution early.
More info: Conductive Wire Glue