Honestly?
The guy who invented blu tack (or sticky tuck, call it whatever you like), now he must have been a real genious. I mean really! who could doubt the amazingly fast rate with which it's being used by millions of people worldwide, each day? It was a hit. yep. Along with all those other guys (and girls mind you) who contributed to the comforting of daily obstacles and became a part of our routines, by donating some time and effort inventing all those little things we simply consider unremarkable compared to all the hi-tech frenzy.
Uh, i know I'm babbling but if you really can't go for the device and spacecraft making (maybe..not having what it takes?) anyone could invent stuff which may not find traces of life in mars or connect me to my aunt who lives in panama, bUt will certainly gain their place in my drawer. (yours too.) yeah.you can tell i've been redecorating my desk today can't you?...