andrew , its 1/4 inch plexi , cut to fit and a 1/2 inch drill bit i bought at a (tap plastics) plexi-glass shop , which made the drilling hella easy . the only place that sells those suction cups around here is cd aquarium in san jose and aquatic central in san francisco. i know you can get those online somewhere , i couldn't find them and there 2 bucks at AC and 2.50 at CD . about the kamfa's , i wish they were a pair , im not even sure if the KK is a female ,im hoping that she is . when i got her i thought she was male because of her good color but im leaning towards girl now , she acts female , i'll keep you posted about that because i want to know too ............................ what do you guys think is she female because of the bands on her head or do males get that too ? i just moved them next to each other i'll let you know what happens ..