Summary

I chopped up the original octopus and made a hole in it. comes in a 3 and 4 slot model.
Print out octopus and a couple of supports. fill support with sand and use some supper glue to secure . Also you can use rock rubble or crushed oyster shells. Just make sure it's heavy.
Glue 2 cone supports to octopus.
Use PETG so that it is saltwater safe.