We usually give homemade jelly to neighbors and teachers for Christmas, packaged nicely with a box of crackers. It's personal, and the recipient doesn't have to eat it right away, so they can spread the holiday caloric orgy out a bit. I don't know exactly how much this jelly-giving costs. Pectin runs about $3 per batch (of around 2-3 quarts of finished product); sugar may cost me about a dollar per batch; the fruit is homegrown, the cost is minor; the lids and rings are another $4 or $5. We only just barely finished using up the jelly jars that came with the house, so that will add a bit to the cost next year. So maybe a dollar or two of cash cost per jar? (The time involved is much more significant, but that's not what I'm accounting for today.)
I used to look for once-used bags at yard sales, but I haven't done much of that this year (my kids are too big for most of the wares one finds at yard sales around here). White paper craft bags are one way to go, but they were sold out when I last needed them. I've tried just tying the jelly jar and box of crackers together with pretty ribbon. No joy. Maybe it's just me, but it looks like a 6-year-old did it. So I've been looking for other options.
Coincidentally, I've also been looking for ways to recycle my kids' juice pouches. Yes, I know, I should be sending them to school with reuseable beverage containers. You do that with an ADHD kid for a year and see how many reuseable beverage containers you go through. We're sticking with the juice pouches.