Slim Fitting Tuxes

Does anyone know where we can rent a slim fitting tux? We went to Mens Wearhouse, and all the tuxes they had were really boxy. FH is really tall and lanky. Ideally, I would love to buy him a tux and have it fitted to him, but he thinks it's a waste of money since he probably won't ever wear it again. Are there any places that have 'European cut' tuxes that might fit better?

TIA