I'm new to onaholes from using encased toys like the tenga flip hole (had all colours) and I find it difficult to masturbate with them.

Onaholes are really soft and difficult play with by hand so I tried making flaps in a small cardboard box and it worked well, felt absolutely amazing on my Rina/mouth of truth.

Does anyone here have a better way of making shells?

Perhaps using wax coating then moulding plastic to your toy for a removable holder.

PS. How do you fuck a lolinico or virgin age admission? they are just too tight and I'm not well endowed either