12pk AmazonBasics single use D cells for $5~

D size batteries are hard to find on sale, but they are on sale now. One dozen AmazonBasics size D single-use batteries are on sale by Amazon itself for $5.12 with “Subscribe and Save” or $5.39 as a normal purchase. Limit up to three sets per customer during this sale. This is not a lightning deal, so the price can change or not change at any time. They are an add-on item, so you need a $25+ order.

Speaking of Add-On items, if you want to dabble in DIY lightning with consumer products, this 16 foot flexible light strip (cuttable and linkable, 300 total LEDs) is down to $2.19. You can buy as many as you want.