Creative ways to secure the keys

Use a good quality, metal, vacuum flask. You certainly can't microwave it ! Even smashing it is difficult and it takes ages to melt !
Finally, I've posted about this before, KH and I have a Qiui Cellmate that uses an App and Bluetooth. It has a timer function in minutes, hours, days and even months. If she sets it I don't know for how long and neither of us can open it until 'time's up' You can even make it work with a KH on the other side of th world !

 

give it to somebody else that wont let you have it back.

 

That makes it a more interesting option...

 

If you have the money, the Chronovault is the best option.

 

Good for humiliation

 

Lol this is true. But for someone like me I don't like to force my kinks onto unsuspecting people. Feels... Wrong. But to each their own.
I really find chastikey works quite. Most issues I've seen are people have a hard time forgetting the combination.
One thing I've found that works for me in that scenario is set your combination before applying your device. Then go through the task of securing your chastity device and close the lock and scramble without looking. So when it goes through the random numbers sequence you're less likely to remember because you were distracted by applying your cage.
So order of steps
1. Set combination
2. Apply cage and lock. Scramble code without looking at lock.
3. Hit next and watch random numbers sequence.
You can also try purchasing multiple luggage locks, use a long combination to break it up for each lock, and select a random one to use with your device assuming it's not an integrated lock.

 

Actually the bots changed too. There's a trust feature. So Zoe for instance people complained wasn't mean enough. If you select trust holder it kind of unleashes the description of that bot.
For instance I ran a 4 hour fixed lock without emergency keys enabled and hit trust holder.
4 hours turned into 28. It's very customizable depending on whether you want a card game or just a fixed duration, or you want a bot controlling that fixed duration and maybe extending that time. Check it out if you haven't.