Initial practice ahead of November

Hi everyone Some of you might have noticed I recently asked for information and advice about a self bondage situation I’m planning to do in November. My flatmate will be away for the next month, leaving me with the place on my own, so I intend to take full advantage of this chance. Over the coming weeks leading up to it, I plan to try out several smaller practice sessions to figure out what appeals to me and what works best, since this is the first time in years I’ve attempted self bondage. Essentially right now I’m alone at home and know I won’t be disturbed until tomorrow afternoon (roughly 20 hours). Although I don’t plan on a full 20-hour session, having that much time allows for preparation, running through the scenario, and cleaning up afterward. As I write this, the key to my padlock is getting cold. Because I currently lack some equipment (which will be purchased by November), I’m finding it hard to come up with a clear idea for my first practice run. There’s a bar in my ceiling above me where the light fixture hangs. My thought is to tie the key there once it freezes, so it stays put. What I am less certain about is how to create suitable cuffs or ties and how to use the padlock effectively. I have an assortment of neckties (the kind worn with suits and jackets) which can be used for this purpose, along with belts, a scarf for my neck, and typical household items you would expect. I also have improvised nipple clamps ready as well as a blindfold If anyone has any tips or suggestions, I’d really appreciate them. I’m looking through previous threads here for inspiration too. Thank you