The Pentax Rainbow K-r is pretty loud as far as colors on a camera go. If you like rainbows and need a new DSLR, then you might want to check out these limited edition cameras before they’re gone. This version is designed in collaboration with Tower Records.

The style is much less serious than your typical digital camera. This one shouts fun. Maybe they got the idea when some guys at the factory had a paintball fight one night. Only 300 of these are produced so you might want to pre-order one. Only 300 of these were in the factory the next morning when the boss came in, so that’s it. $1,100

Rainbows are a beautiful and amazing creation of nature. But sadly, they are rare and don’t last very long. If only we had a machine that could make rainbows whenever we wanted them. Well we do and we can.

Michael Jones McKean’s artificial rainbow machine uses reclaimed rainwater and sunlight to create rainbows. It “uses a series of high-powered jet pumps and custom fountain nozzles to spray water into the air, creating the conditions needed for a rainbow to appear.” Maybe now he can work on some double rainbow technology. The machine is set to be installed at the Bemis Center for Contemporary Arts in Omaha, Nebraska next June.

Dell’s customizable addition to their Inspiron line will give you way too many color options to choose from. These include the 537 and the 537s. You have eight color choices in all and your choice of Intel Celeron, AMD Sempron, Core 2 Quad and Phenom X4 CPUs, up to 8GB of RAM, integrated Intel graphics or ATI Radeon GPUs, and up to 750GB HDD for the slim tower and 1TB for a mini-tower.

Or you could always just fire up the Della site with a gallon of ice cream and peruse what they have there. The starting price is $299 and they’re all available now.

We’re big fans of Art Lebedev around here, so when we saw this USB hub jump off of the Dark Side of The Moon album cover, we knew A)the water cooler had been spiked or B) This was yet another awesome Art Lebedev original.

We aren’t sure what the deal is exactly, but it looks like it has some colored LEDS that make it look all prism-like. Hopefully it’s not just colored on the outside. Either way, it’s pretty awesome looking and makes us hear trippy tunes in our head.