It may seem like a weird thing to, ahem, fixate on, but when there is an exposed light fixture in a home, it can be an opportunity to add a touch of character by adding a unique light bulb. I noticed the unusual diamond bulb above while researching how to create a wooden pendant tutorial over at a favorite blog and it got me on the hunt for a few other options...
Globe or Pear-Shaped Light BulbsEach of these are a slight variation on the typical shape of an incandescent bulb, but the different shapes are just enough to add some interest to an exposed fixture. These are fairly common and easily bought at nearly any hardware store or online. A six pack of globe light bulbs from GE can be had for $12 at Amazon, and a pear-shaped light bulb is around $10.
Novelty Light BulbsAnyone seeking something a little more whimsical can turn to one of these quirky options.
Diamond Lights ($33, Eric Therner) - Eric Therner designed his Diamond Lights to look like a glistening gemstone. The Diamond Light is the one used in the wooden pendant tutorial pictured above, as created by Gretchen Gretchen (a DIY project perfect for partnering with almost any of these exposed bulb options).
Eurofase Retto Collection Vintage Filament Bulb ($15.89, The Home Depot) - Edison would be proud. Get seriously vintage style with this top-heavy filament bulb, built for modern homeowners seeking a little old-fashioend detailing.
Eurofase Retto Collection Champagne Filament Bulb ($11.89, The Home Depot) - Reminiscent of a tall champagne flute, this bulb has serious height.
Lamp/Lamp ($39, Generate) - This bulb from designer Hironao Tsuboi is an optical illusion with an amusing head scratch-inducing decoy socket.
(Images: Gretchen Gretchen; as linked above)