I suppose not.......mind you, I love a good special pen knife....one with loads of special bits for cleaning your nails and getting splinters out...........I did have a Swiss army knife once but lost it!! loved it, you could even get it engraved......although vouchers are more sensible as then he can get what he wants as a treat........we bought some roses as well once......then of course there is always other garden stuff like chairs, hammocks, lighting, burners, depends on how much you want to spend and what he likes, even a nice hip flask or good thermos....men can be much more difficult!!!