To add a different reflection glow you can wrap them in emergency blankets, like below with the broad wrapped in a silver one. Even after I had a decent studio in place I continued to use them.
They are also great for a mobile studio if you haven't being able to get a collapsable reflector yet, obviously they don't travel as well as the collapsable one but they do a nice job. And of course you will need a second body or two to hold and position them if you aren't in suitable location.
You can buy them here, for about €3 each.
A couple gold ones propped up in/around the tree.
A couple silver ones in the studio.