I won one of these in a gift drawing last week, but it didn’t come with instructions. It looks like an egg-shaped penguin with a cord. Does anyone know how to use it? 
I won one of those too. Basically, it doesn’t work well.
If you don’t know how to mechanically use it, here’s a little diagram of the parts. You hold the fruit on the cone and press the yellow button. If you press the fruit too hard it stops the motor and you have to wait for it to reset (it’s electronically controlled). The juice comes out of the ‘flippers’, flip one up if you only want one glass filled.
The only use I found for it was for juicing small lemons or limes on poker night. It’s underpowered for oranges or grapefruit (motor keeps turning off and gripping the fruit is hard). Hope this helps.
Thanks for the warning.