Yes, Border Collies will really improve your training and teach you to get creative. Mud's helped me with this because, like you, I ran out of ideas. So here you go...some are fairly basic and some are a bit more advanced.
-Wave(either a normal wave or waving from the beg position)
-High fives(I personally do fives from a sit and "up high"--giving both fronts to your hands from back legs. For now you'll have to bend down to work with her height, but she'll understand as she grows)
-The Dead trick sequence as already suggested
-Lifting certain legs on command
-Stick 'em up! (Putting front paws against a wall)
-Advancing the tricks she already knows---adding distractions until she's perfect with all kinds of distractions
-Walking on hind legs--forward, backwards---if she's developed enough to handle it
-Retrieve specific objects--remote, keys, leash, toys by name, lead a horse--work with the HORSE as well, of course
-Distance work(responding to commands with you at a distance)
-Advancing her stays to make them longer distance and time
-Jumping your legs, arms
-Jump onto your back(if she's big enough)
-Hut, hut, HIKE! (If you're a football fan...find a kid's toy plush football and have her "hike" the ball between her back legs. She should paw it with her front paw back between her hind legs.)
Hmm...what else...I know I have more but can't think of any off the top of my head. Go to YouTube and look for Skidboot videos. He's good. Also, silvia.trkman.net is great. She does great stuff with her dogs. There's a vid here on DTA somewhere with a dog named Dazzle that also does some neat tricks.