Why grab your mug and a coaster when you can just grab a mug? We know, we know — you’re worried about stains and water rings. But fret not — thanks to the Floating Mug, those are issues of the past.

Designer Tigere Chiriga invented this elegant, highly functional mug in his first year of marriage, after he found himself in the doghouse for leaving stains on wedding gift furniture. “I would get ...