Whichever way you decide to go with your flowers, a lovely idea is to try and tie your whole theme together so if you're going for roses, then have a rose design featured somewhere within your headdress. Look out for a company who can work with you and your designs and most importantly your budget to create that one_off, bespoke creation just for you.
Don't forget that not every bouquet has to be a masterpiece. The important thing is to have fun, experiment, and use your creativity. You'll find lots of inspiration in magazines, on web sites, and in nature. Just find some simple looks you like, and try duplicating them at home. Over time, you'll get more confident and creative, and who knows? You may find it's a great way to make very personalized gifts. So, pick up some flowers today, and make a beautiful bouquet. You might discover a talent that's ready to bloom in you.