File :-(, x, )
party ball Anonymous
does /po/ know how to maek one of those party balls that open when you pull the string?
>> Anonymous
op here. i already know how to maek the basic shape, so all i need to know is how to maek the opening mechanism
>> dai
     File :-(, x)
interesting idea... There's a few basic things you can do to make it spring open, but it requires more than paper.

simplest thing you can do is get a long 1/4" spring (home depot helps) and position it so it's straight when it's open, and it crunches up when closed. (see grey double-line in picture)

All you have to do from there is tie a string around a piece of paper, and glue/tape the paper to the point opposite of the hinge point (see red in picture)

...use THICK paper for this, depending on the strength of the spring, you might have problems keeping it's shape. Extra support is suggested.
>> Anonymous
op here. thanks for the halp.
>> dai
forgot to mention, tying the string to the middle of the piece of paper will have several different outcomes, depending on if you tape or glue-

scotch tape- the string will probably pull the paper off of the ball and release. This may remove any print that is on the ball.

duct tape- paper will tear in the middle, and you'll have to remove the tape and risk tearing the ball.

glue- the paper will tear in the middle, and you won't be able to remove the paper. Re-closing will require that you either just put a new piece of paper on top, or glue in a new place, leaving the old piece out in the open. (you CAN trim away the old piece if you'd like, but sometimes that ends up doing some odd things when you glue on top of it.)