I should be joining in as well. The main idea I'm considering for Stash Busting fits here as well and there are a couple of other things under consideration.

I know I couldn't do much for a bedspread on my machine. The Brother SE-400 is a lovely machine to work with BUT it's more of a 3/4 size machine so not much throat space. It was a challenge doing simple quilting on a throw not quite twin sized. I've got two larger quilts basted but I'm pretty sure I'm going to need to clean up an older Singer I've got and use it.

Ah, the subtle difference between stash busting and scrap busting.  More commonly you see the Darkside denizens  talk about scrap busting, as Q & P as well as applique lend themselves to saving every little scrap -search confetti quilts to see what I mean.

Most Sewists I know have vast yardage stockpiled for whenever in the future they get to that project. See a good sale, buy. See another one, buy more. And on it goes. No matter if you (me) only sew three or four items in a year. We must be prepared in case inspiration strikes. 

 Actually, if I get the main project done I have a secondary project in mind that will use up any and all scraps from the first one. 

edited to adjust spelling.

Cool. Thanks Manuela. 

Brenda's right. Some of the hulls even look like they've been tumbled so there are no sharp, pointy bits on them. We use the stuff they sell in pet supply stores for lizard and bird habitat. Some quilt shops rebag it in small amounts for pincushions. It is an excellent heavy filler for a pin keeper. 

If it was very thin it might have been domett.
https://www.sartorialsoftfurnishings.co.uk/interlining/

I think that, apart from width, the only difference between cotton wadding (aka batting in USA), bump and domett is the thickness.  A while ago my daughter who makes curtains professionally saw one of my quilts in progress and she commented that the wadding is the same as the bump that she uses for interlining.

Except per your link bump and domett are wovens whereas batting is not. I've used a very heavy, coarsely woven grey flannel I found dirt cheap as a lightweight quilt fill and I loved it. Had to preshrink the heck out of it and I've never seen anything like it since but I think the lightweight Domett might work the same.
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Locally the quilt shops do carry some 48" to 54" batting sold by the yard. I assumed because it is much easier to use if you are making throws and baby blankets, especially if you only want to make one. Frequently it's polyester and that price point @Stitches mentioned sounds more like poly than cotton.

Really most any batting will work. Just need to decide what fiber you want it from, how thick and puffy- the loft, then if you're going to tie it or quilt it and if quilt, how far apart you want your quilting. The batting adverts and labels will tell you what each batting is best suited for. I go by that.

@Iminei, I have intelligence the @Renegade Sewist wants pincushions to be included - she also kind of volunteered to help with a list 

@Manuela is basically correct. I have a few ideas that might be of interest but still being a relative newcomer I'm not too sure of what we typically do in the Darkside challenge and Competition wise.I know about Project Linus, which is also done locally to me but I don't participate as the coordinator for my region won't accept anything made in a home with pets or smokers. My cats are disappointed. I guess we do some exchanges and sew-alongs, but how specific are the sew-alongs? Just a theme ( color me blue, Springtime in Paris), type of work (P&Q, applique), type of item (mug-rug, table runners and placemats) or specific type of quilt (disappearing 9 patch, 1600 quilt). Examples off the top of my head to illustrate my question, not necessarily suggestions, although a few of them might actually be good.

And yes, I do have a hankering for making pincushions. And a very large bag of crushed walnut shells mocking me.

Can you come up with a list for the Darkside @Manuela  ???

When I saw this I thought, but Iminei does that I think. Then I saw it was you Im. With other stuff you've related recently I don't blame you for wanting to shed the thinking cap on this one.

I can help with ideas but I'm not well versed in what sew-alongs & competitions the Dark Side normally does. Do we do full quilts besides the Project Linus one, or mostly blocks and smaller projects? I've got two or three super simple quilt ideas, some table top accessories ideas including for the sewing space, applique and P & Q block small projects, pot holders, and of course-

 Pincushions! We could definitely do pincushions! (notice how I keep bringing up pincushions...)

I do like the sound of having a few contests with themes. like the tartans, florals, a color like you mention or a theme -here's a hare brained one just for the concept "Race to Space" or any of many better themes that is generic content wise so anyone can enter. I've really enjoyed seeing the results for those. We know usually a garment will "win" but that's not the real point is it. It's more about participation and sharing. And pincushions. Pincushions should always be included. Always.