- arms crossed in front
Finally, I managed to find a photo of the proper strait-jacket: a latex leotard with long sleeves and mittens with D-rings. Depends on how strong the latex is, self-bondage is possible by connecting the D-rings to the ice-lock through SRD. Actually, I tried something like that but with cuffs, not with such a bondage leotard.
MadJack, what do you think now? ;-)