I tend to buy up on eBay, other peoples craft clear-outs. One batch I received ages ago contained a load of holographic card. Personally I find it a bit gaudy, but also way too interesting to cover it up either. So for several months now its just been sitting in my card collection. I really have no idea what inspired me to use it for my brothers birthday card. It just popped into my head.
In fact I enjoyed using the holo card so much, I am thinking of using it in other ways. Whether the photos show it or not it actually looks quite awesome under electric light. I am hoping that if he displays it, when he is walking past it, it will catch his eye because it really does shimmer and move.
For the back, I ended up using dies and punches. I also made an envelope...and I did not use wallpaper this time! lol.
Great card and very creative!! The colors and shine really do pop right out at you. I'm sure your brother will not be able to walk by without looking at it tfs