i've considered (only in my own mind) glass on glass and it just doesn't fit with my design for this model of the Bud Toaster.
The vial could be loaded upside down to keep the bud from falling out when the bToaster is inverted, but really, that's not a good way to use this model.
Model 14 (this current model) is complete as presented -- except for changes required for easier manufacturing, since i'm the slave doing the fabrication. For example, i need to extend a pad about 3/16" for better power connection to the pcb. And i would really like to move the MOSFET farther away from the heater coil -- although that has not been a problem. And maybe provide power from the pcb to the digital thermometer to eliminate the button cell -- although with auto shutoff, this battery should last years.
i'm pretty sure there will be additional models after this one has proved its value.
And it's been interesting following the thread on "Made in USA" designation ... despite the fact i'm the one (in USA) making this kitty, because the most expensive components, the three SOIC chips, are made in Malaysia, the Bud Toaster will never qualify for "Made in USA" sticker.