I have SMD (stereotypic movement disorder,) so my stimming is usually longer, more aggressive, and usually involves the entire body. I do plenty of small stimms but the big ones are...
1: When I was child I would spend hours hitting the ground with sticks while walking around in various patterns. This allowed me to think clearly, have fun, release my energy and be creative.
2: Intense rocking. I can only rock on 2 conditions. 1: It is a rocking chair, and 2: I am listening to music. This one works out for me because when people see me I can just say I'm, "getting into the music," when really the rocking is a Stimm. I rock aggressively and have broken 2 chairs in my life because of it.
3: I will often clasp my hands, point my arms down and jump.
4: I often clasp my hands and hit my thigh as hard as I can
5: Running! This often works for me like a stimm.