Merch idea i had

alright so ive thought this for a long time, and ive just been using every opportunity ive gotten to put it out there. i dont know how many people agree

basically, its a calliope mug. same style as those jade mugs and john mugs and rose or dave mugs. except its calliope. and its got that special ink so if you pour hot water into it, it becomes caliborn.

is this a possible change in inks? i have no idea. i am not a specialist in that type of ink. is there demand? i have no idea, other than myself and like 2 people who also would want it.

let me know whether my idea sucks or is the best idea known to man. thank you