Thanks , Jason . ;D awesome
NASA :
You need to brush up on your Maschinen Krieger , brother 
NASA's been bankrupt for the last millennium ;D ( like 900 yrs )
Speaking of NASA though ;
I had completely forgotten about this piece of plastic from a 1/72 Revell Space Shuttle with ISS parts - it's one of the payload pieces .
Early on I planned a counter-mass for the scissor assembly and ECM package that will sit atop it . ( it's gonna open like a flower . 3 'petals' folded in skew-divergent --- pics soon )
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I was using it last month to mix paint ;D -- I always like to get the fullest from my inventory .
Especially donor kits . Make them suffer 
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It would be a power pack / battery
I think it needs to be a little shorter -- by around 1/3
Cheers !
El MoMo