You could stand in the tissue aisle of the supermarket for twenty minutes trying to pick the least tacky box (hmm, dolphins or sunflowers?). You could have a nanna-style tissue box cosy (as a little girl I had one such item shaped like a bed, complete with quilting, lacy valance and even a timber bedhead − jealous?).
Or, you could dig up a rarely worn bangle (a heavy one will work best) and plonk it on top of your pile of no-brand tissues and feed through to make a dispenser. Bonus: since it’s out in the open, you’ll never unkowingly use the last tissue.