I bought solar garden lights off amazon for cheap. They worked great but the aluminum stakes that came with them were garbage. Needless to say, I created my own and they turned out superior to the originals. I designed them using Solidworks when I had access from my old job. I do not have access anymore so I can't get the exact measurements until I print it again. I will update with dimensions soon.

Link to amazon light (will more than likely fit others):
https://www.amazon.com/GIGALUMI-Outdoor-Landscape-Stainless-Steel-12/dp/B01K1SETD4/ref=sr_1_27?keywords=solar%2Bgarden%2Blights&qid=1705172990&sr=8-27&th=1