first of all post what youre wanting eg. steel, 24.5, 31.8, lightweight carbon, dh wide bars, high rise.......... etc
secondly some of the suggested bars are good but the mugs who are suggesting them arent saying why
if youre wanting steel bars there are some nice bars by gusset and dmr, steel is flexy and strong but is heavier, there are hundreds of bmx stems to choose from in lots of colours too. if you want alu bars you have a choice of 25.4 or OS, depends how much flex you want. deity are good bars but you can be a little more original. there are nice bars from funn,truvativ,spank,easton,raceface,sunline,Ns, azonic etc have a look at them. if youre using them for jumping youll want a 50mm or less stem, there are tons to choose from and mainly comes down to looks really, you can get cheap functional ones like hussefelt stems or spend a ton on a lightweight thompson or somthing.
personally im using a set of no frills truvative bar/stem theyre surprisingly good and cheap but are pretty dull