Hiya, I'm here to share my "haves". Not all of them are potted up, but I will gladly dig up stuff to share.
Alaska daisies, (these babies have been really full the last 2 years, the stalks have been very sturdy, not falling over, and have given me blooms twice after deadheading/pruning. They have been about 3 1/2 feet tall for me in my rocky/sandy full-sun area). These guys attract bees galore.
Homestead Purple Verbena. I've got 4 of these, and they are spreading like wild fire and taking over the entire front of my 25' wide bed... just the 4 of 'em! They start blooming early/mid Spring, after a hard haircut they smothered themselves in blooms again and got fuller, and now they are in need of a hard haircut again. Last year (I've only had them 2 years now) they kept on blooming until about mid-late November. I'm not sure what the term is for this, but when their branches spread, where they hit the ground, they take root along the branches in MANY places, so I should be able to pot up several. I find more butterflies than bees on these.
Agastache Tutti Frutti. I've had these for 2 years also, and this year they got over 7' tall (and about 2 1/2 feet wide) before I gave them a hard haircut. They're coming back even stronger now, WAAYY fuller than before, and they are also self-seeding. I've got a handful of new babies just from self-seeding this year. Perennial, btw. The foliage smells soooo good, and the bees and butterflies flock to them.
Sedum "Autumn Joy"... at least, I believe that's the variety, I'm not entirely sure. It sure looks like it. ;) Was a gift from a now-passed lovely neighbor but it's growing out of control... once was 1, now there's 2....soon to be 4 if I don't share some. ;)
Platycodon "Sentimental Blue"... I believe it's Sentimental Blue, I don't remember for sure. They are self-seeding just this year (only the second season I've had them, first installed them at the end of last season), and the new babies have been blooming this year, but the originals have gotten to be nearly 3 feet tall and have needed some staking.
That's about all I can think of off the top of my flat head at the moment. I'll add more later as I think of them. (while I'm out pruning later) :)
If anyone's got any bee balms, Liatris, or perennial geraniums to spare, I'd love some please.
Oh yeah, and I've got lots of growers pots in various sizes, too. If anyone needs pots, let me know and I'll bring what I've got. :) They're just the cheap plastic ones that ya get at the nursery, but sometimes those things come in handy! =)