Diaper fun

So next week I have a few hours to myself once the house is empty. So I plan on waking up not going to the toilet drinking plenty and then unloading to fill my nappy of all the nights wee. Then this is where it gets fun I want to mess but unsure on what to use.

I've used a mini douche before to fill with water which helps expell everything I've tried fleet enema and also tried suppositories. I have also done the marshmallow trick.

But I'm just wonderin should I mix it up should I cross over some fun. Also has anyone tried playing with themselves whilst trying to hold in thesebsoet of things?