https://www.bunnings...sponge_p2813423
Could modify two of those into one?
Or this:
Thank you! I could make one of these work - if someone can give me an idea on how to stick 2 of them together (end to end). What glue is safe to use? Is Contact Adhesive OK? Or should I sew them together? As I need them to be 700mm long in one piece. The inner pipe fitting is not required as I will be cutting the foam down the middle to form 2x triangles