You dont have to use anything complicated, just accelerate it to the speed of light and the half life will stay the same but we would observe it for significantly longer.
Ive been watching too much doctor who and now I want a thermoscan based on black holes for my tea
(Yes, there is a well-known paradox/open-problem implied by this.)
If you have one of a "mere" 606 million tons, the Hawking radiation is hot enough to directly include fast moving positrons (and has a luminosity of 1.178 GW), while still massive enough to spaghettify you (370g at 10cm).
If the black hole is lower mass, the radiation gets even more energetic. The radiation from 606 thousand ton black holes (sometimes suggested for Hawking radiation drives for spacecraft) is hot enough the radiation will either include antiprotons, or at least the photons will be energetic enough to spontaneously create them on impact: https://kitsunesoftware.wordpress.com/2022/05/14/no-a-black-...