Relia-robot

A star in a bottle, quite literally - a blue-white supergiant shrunk to the sizle of a grape without causing it to collapse or explode, neatly bottled inside a tinted glass contained carefully sealed with star-wasp silk to keep the fearsome radiation and gravitational energy contained. The tag on the bottle indicates that it has roughly a million years left on its existence, and that it was bottled by a star witch who wanted a better grow light for her garden; the light it lets through certainly does seem to encourage plants to thrive, turning even the most orderly containers into a jungle in a week or two.