Exposed components or not, I hope the instructions advise youngsters AGAINST taking their finished clockwork to Show&Tell **
"Any technology, sufficiently advanced, is indistinguishable from magic." ++ _ _
** Sept.15th news item: Irving,Tx teen Ahmed Mohamed, repackaged a Micronta clock's guts into a size-small tech briefcase 'pencil case' enclosure, and trotted off to school with it. The clock was received with [ahem] alarm(s). Kid gets arrested, gets released, gets invited to TheWhiteHouse & to MIT, then gets (at least) $15k in 'support', etc. In defense of Histrionics, any Hollywood SFX designer would vote that choice of enclosure, so..C'mon! In defense of Kid: Those old Microntas never showed a CountDown mode, so..C'mon!
++ One of 130-or-so Murphy's Laws quotes&quips from a mid-80s dos freeware: " murphy.com " Another example: "If carpenters built buildings the way programmers built programs, the first woodpecker to come along would destroy civilisation."
Any time you execute murphy, it outputs a fairly random (think:fortune) selection on console. Dan Keizer &/or Kelly Kitson were always handing me dos utils, like this - e.g: Vern Buerg's (still) excellent LIST.com, uEmacs, f32 filer, QT fuzzy clock ("it's around quarter to three"), kermit, etc.
Some say murphy was compiled (gathered) by a Canadian salesguy w/ Data General (Edmonton?). I should have a vintage'85 CP/M 5.25" from Austin Codeworks, with source in murphy.ASM or _.FOR .. It's gotta be somewhere around here .. [fumble] .. or in here .. [shuffle] .. or maybe in he.. [sound effect: "Fibber McGee & Molly" hall closet avalanche]