BUR #21776 has been approved by @nonamethanks.
create implication animal_ear_headwear -> fake_animal_ears
create implication animal_ear_hood -> hood
create implication animal_ear_hood -> fake_animal_ears
create implication animal_ear_hairband -> hairband
create implication animal_ear_hairband -> fake_animal_ears
create implication cat_ear_hairband -> animal_ear_hairband
create implication cat_ear_hairband -> cat_ears
These tags all directly refer to fake animal ears in some way or another unlike, say, animal helmet (where such an implication request is a horrible idea) in their description. So therefore, I think it would make sense for them to implicate fake animal ears.
Also, trying to make animal ear hairband a thing, as there are many hairbands featuring, say, rabbit ears (post #6967730), mouse ears (post #6950560), or ever deer ears for the festive season (post #6981741). These are all fake animal ears on hairbands, so wouldn't it make sense to want to search for that a la animal ear headphones? Implying the already existing and somewhat populated cat ear hairband to animal ear hairband would only then be a next logical step, and perhaps pave the way for other varieties like a possible rabbit ear hairband tag (especially for all the bunnygirls I found...)? I think it's a good idea at least.