I've been souping up my G1 collection lately with some new reprolabels, a bit of touch up painting and a few upgrades such as a Matrix of Leadership package for my Optimus Prime. Seeing that the Matrix's heart is transparent blue it'd seem easy enough to put a small blue LED into Optimus' open back to have the Matrix light up. Similarly, I was thinking that it shouldn't be so hard to tuck a tiny laser pointer into G1 Megatron's fusion canon. The trick would be to find existing light+battery setups small enough to easily fit in place; preferably with an easy way to turn em on and off. I'm just curious if anyone has tried adding some LEDs or lasers to their toy displays and, if so, what kind they used and what the results were. Pictures would be great! Thanks.