I hacked back my cacti and have an over abundance of cuttings.

I've been looking online for uses of unwanted cactus cuttings but all I can find is 'how to take cuttings of cacti'.

I would like to chop it up and compost it but I don't have a mulcher or am confident I can cut it small enough to stop it growing again without a great deal of effort.

I don't want to discard it as it's a quality resource with its moisture retaining properties and have in the past used it buried next to trees to provide water and nutrients in summer.

Looking for creative uses for this cactus from the community please.