If you do go with flat or mountain bike handlebars, I strongly recommend perpendicular bar end extensions. Since all of my road bikes have drops, the extensions are my primary position when riding my mountain bike. With my 4-finger motorcycle-style Shimano brake levers, I can easily slow or stop from the bar ends, as well. I am delighted with them.
Some bikes don't need any decorations for a neighborhood Fourth of July parade.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069