These ARE currently available at Hot Topic stores: retailers of pop culture & band t shirts. You can get to HotTopic with the link at the top right of this page.
Flat rubber keychains for Sonic X. These have great detail and a really nice cell-shaded look. There IS a Tails one, but Hot Topic does not carry it. All of these key chains are available right now in the SonicGear Sonic Store.
Tails and Rouge are now in your collectible keychain line-up! These are such nice die-cut keychains, the detail is like an animation cell, and the colors are all spot-on. These are appearing in Hot Topic stores right now! (if you have a bunch of Sonics in your Hot Topic, they may not have these guys in yet.) Keep shopping though!