Spin - 5Related to the Top Spin puzzle but with 5 numbers to spin instead of 4 and numbers up to 26. Made in Taiwan.
Spin ZillionAnother mass produced version of the Ten billion Barrel. It even shows the earlier name of the puzzle's top surface.
StretchlabacusA variant of Quartolabacus with asymmetrically elongated bends.
SwitchBackA series of 8 bars with holes in them is used to move the marbles from cell to cell.
Synchro LoopOne ring of marbles with two circles that always turn together.
TanglelabacusA bigger variant of Astrolabacus with eight segments but still four channels of beads.
Ten billion 2/3A ten billion barrel with only two colums to push the marbles up and down.
Ten Billion BarrelA classical japanese puzzle from the original cube craze. This entry is about the versions with Nintendo-logo.