As I'd mentioned in my post on my Ostara Ritual for this year, I'd wanted to do an In Your Head spell. In fact, a pair of them. This post covers that working, which I performed separately from the Sabbat ritual itself.
I pulled in most of the elements from several of my altars. Because this was a very important working for me, I brought in almost all my idols, most of the elements from my main altar, several elements from my prosperity altar, and a few pieces from my happiness/mental health/friendship altar.
I set the whole thing up on the dining room table since I needed room but also knew I'd have candles burning for long enough that I needed to keep them in a central location.