@Gameking here you go 16mm x 1.8m long plastic coated steel garden stakes:
Ensure your flower beds and borders look immaculate by using this 1.8m metal stake from Apollo to train your plants. It's clever ridged design encourages plants to grip it, helping to protect them and support their growth. Although it's made from a steel inner tubing for strength, the stake is...
www.toolstation.com
You cut off the ends to expose the hollow tube. 6 of the 8 ends need to be cut. 2 of the existing pointy ends press into the rubber feet as is.
I'll also do a version for carbon fibre tubes when this version is done.