I put a yellow piece of plastic over the pinbits bulb I installed in the creature cabinet spot light. As they say every thing you need in life you learn in Kindergarten. Yellow plus Blue makes green. By creating a yellow light beam that reflected on my blue creature, it greened up nicely. I got the yellow piece of plastic from Pam at Pinbits. Maybe cost a dollar. I made a post about it about 4 years ago. My creature looks much better then what. I posted in the pics as I recall.