I don't have any video yet (I know, sorry), but one of the tricks we're working on with Elka is video-worthy: saying "Hello".
I've mentioned that Elka is very vocal, and that she says "out" when she needs to go outside to eliminate. I don't know how many talking tricks we're going to end up with (probably not as many as Mishka the husky on YouTube), but a few seems pretty cool, and viable.
The reason I even got the idea is because of this situation: A few months back, one of our college neighbors knocked on the door. It was her birthday, she said, and she was having a party. If they got too loud, she said please come tell them, and they would cool it. I was amazed and pleased; none of our college neighbors had ever done such a thing. She introduced herself (I forgot her name), I introduced myself, and Elka, who of course was standing next to me. She looked down and said "Well, hello Elka!" and Elka looked up at her and said "Hello." I was so floored I couldn't even think to reinforce her or anything, and we finished our conversation and went our separate ways. I turned to Jim, who was on the stairs, and said "did you hear that?" He had.
So, now with the lovely weather we've been having, we've had the screen in the front door again. Elka is re-acclimating to those sounds (people walking past, car doors, the screen jostling in the wind) and will alert us to each one of them. Awesome. Since they don't all need our attention, I've been working to redirect her. She hasn't yet said "Hello" cold, but will make reinforceable "Hello" noises once she starts going and then I say "Elka. Hello!"
She's a bit confused so far as to what I'm marking, but she's getting there. And she's "talking" more, which makes me think maybe we'll add more. I also don't want to muddy her "Out", which has gotten pretty reliable.