Some ideas for making the tundra?

Ok so in science class we are doing this project where we can make one of the biomes. She said we can either do it in a 2 liter bottle or in a shoe box. I chose the shoebox. But ANYWAY, the real question is what can I put in it. I already got this white board to be the permafrost (the ground) and I was thinking I could get a polar bear and stick it in there somewhere. Any ideas? This is worth a test grade. Any other ideas. Like what I can use to make icicles or something like that. It has to be lifelike though so no snowflake stickers or whatever. I was also thinking I could have an Indian fishing and an igloo not far from them. I really want a WHOLE lot of detail but remember it has to fit in a shoe box. And my teacher says that the biome has to include a plant and animal that lives there. And you can include more than one animal or plant but again please label what it is and please tell me what I can use to make it. For example if I were doing a sunflower (I’m not because its the tundra) you could say you can buy a fake one at the craft store or something like that. I know that was a bad example but you know! And please do a lot of research and figure out what animals and plants live there and then you can be creative and figure out what I can use to make it. And you can include white spray paint or whatever in case I need to spray paint some rocks or something. Please include everything!!! Thanks so much! And no nonsense answers please or they will be flagged.