Here is Family Guy character Ellie, from the episode "Boy (Dog) Meets Girl (Dog)", looking at the viewer for my upcoming fan series crossover with Pokémon, Family Guy + Pokémon: Dragon Tamers (which combines some elements from Digimon Adventure 02 and Digimon Tamers). Yes, we can see that Ellie is collarless, but she isn't completely without wearing anything. On her left front ankle (or "left wrist" since she's anthropomorphic), she wears her Z-Power Ring, with the Z-Crest of Love on it.

I'll have her wearing a bodysuit that matches her collar later on, as well as her wearing Haxorus armor.

Made with Inkscape

Note: Ellie is copyright of Seth MacFarlane, FOX and The Walt Disney Company as is Family Guy. The Z-Power Ring is copyright of Satoshi Tajiri, Ken Sugimori, Game Freak and Nintendo as is Pokémon. Digimon is copyright of Akiyoshi Hongo (a group comprised of Akihiro Yokoi, Aki Maita and Takeichi Hongo, the creators of Tamagochi) and Toei Animation.