3D/4d ultrasound

I have my last one today and it’s 3D/4d. It’s $99 but the thing is every time I’ve had an ultrasound baby has kept his hands/feet in his face. He’s head down already and I’m 31 weeks today. Anyone have this problem and what did you do to get baby to move hands and feet out of face? I bought some cotton candy to eat right before I do the ultrasound so hopefully that’ll get him moving around 😂 just wanna see this baby, will be my last ultrasound today so hoping he shows us his face!