Share your favorite cellphone from back in the day or modern feature-phone and if you're still using one... Just no modern black monolith with no shape...
see the thing is: a lot of old phones were all cool and funn on the outside; cookie cutter "just werks" bullshit on the inside which made them pretty interchangeable for the most part. That being said I grew up with nokias and I still cherish the 5130 Xpress music I had as a kid, and really wish I had 5730 because sliding side keyboards are still the coolest fad in mobile we ever had but to be honest as far as the standard numpad phones go MAN is everything Sony Erickson put out way cooler though that may also be just because they were used by people I considered cool at the time
For me, my favorite phones are the Motorola Razr V3, T-Mobile Sidekick, and those Blackberry Curve phones. I've always loved flip and QWERTY physical keyboard phones. As a matter of fact, I replaced my old slab of glass modern smartphone with a 4G flip phone in May of this year. :)