The old Jack-in-the-box. over 100 or more years old in design but so beloved and popular to still be in production with many toy manufacturers and at least one famous store chain and manufacturer having added one to it's logo...
...And of course there are those who would at times live the action by dressing up as a clown or jester while hiding within a big decorative box waiting to jump out and give the very memorable 'shock' the old tiny classic is known to give. meanwhile many owners have found alternative means of fun by stretching the springs within about to go along with their imaginations.
The magic shop of course, with its ability to create reality from the imaginary, have been at work to create a way of making actual human jack-in-the-boxes that can allow a far closer experience then the old dressing up and hiding within a box.
How does it work one might ask? By use of these decorative boxes that look like the style used in the standard classic jack-in-the-box but inside are the sizes to fit actual people inside with the top part of traditional costumes within attached via the waist to a variation of the cloth-like spring bottom of a normal jack-in-the-box also attended to the bottom of the box...
...these just don't come in Jester or Clown costumes either. their are also royal, law-enforcement, horror movie monsters, even some themed on famous fictional literature characters(the spring is always attached to the waist but with dresses and petticoats they are covered somewhat). how they work is like this; undo the buttons or zipper of the costume part to create space to get inside, once inside with waist and below within the spring area just place the rest of the costume on and re-button or re-zip and once done just crotch down within the box and close the lid...
...at this time the body below the waist will fade away and be replaced by a fully functional jack-in-the-box spring attached to the lower body in it's place (don't worry, it's painless thanks to the magic) that at the same time acts as a fully active human lower body in terms of blood circulation. to return to normal just unbutton or unzip and you'll quickly and painlessly return to normal (it's also is encouraged one not be a human jack-in-the-box 24/7 as you still need body nourishment but can dispel the waste while in the form... and for females trying to give birth...oh he endlessly possible horror beyond the movie theme).
The boxes are practically indestructible for safety reasons and this invincibility is passed to the human body while one with the box. but if the host is directly killed the revert takes place regardless and in rare event a box is destroyed with a host within their are reversed but usually come out disoriented and winded. another thing of note is that unless somehow over a few years period boxes don't change in size with users and if such a user reverts after getting bigger in size the box will return to it's rightful size.
As it happens after release these boxes proved very popular, especially with performers and children, the later of which are known at times for making their parents take them on car rides while attached to their boxes while the former has due to the strachability of the spring parts has both brought changes to many tricks and allowed new ones to be created exclusively for the users.
Their is something of a dark side beyond the rare risk of death... more advanced boxes that the magic shop can control in activation and deactivation, can be shrunk down and while letting users retain awareness prevents interaction...
...these boxes are often exclusive orders by law enforcement to be used on criminals charged with indecent actions against children yet cannot be executed either due to local law banning the act or the actions not being fatal to the victims. these criminals instead find themselves spending what is often their final years as toys without control being messed about with by their target range of people (if they are lucky) they once were a threat to, added magic of these boxes assuring their body functions are slowed down to allow them to live.
For now, who is coming to the store today to get and be a Jack-in-the-box: