Check this out... They're practically color matched, and there's a variety of textures and patterns.
I feel like I robbed Goodwill. These sweaters are a mixture of wool, extra fine merino wool, lambswool, angora, and cashmere. There's even some brand(ish) stuff like Forever 21, Express, GAP, St. John's Bay, and more.
I also picked up a few random items for their material, and these two lovelies: a Worthington 100% genuine leather jacket in excellent condition and almost butter soft, and an Ann Taylor Loft 100% silk blouse. It feels amazing. I'm a little conflicted about cutting up such a beautiful shirt, so if anyone knows a better use for it, feel free to let me know. It still has the dry cleaning tags on it.