Any pillars you may have would be ideal. As far as furniture goes, it you can pull, push, or move the item it becomes useless. The only options that I can think of are:
1. Have something so heavy that you can't move it. Maybe a treadmill, or a workout bench etc.
2. Have something that you don't want to move. An antique china cabinet full of family heirlooms and such.
3. Have something that you cant move because you have no access to the floor or walls.
4. Have something that you can easily move with your hands, but there is no way you are going to drag it with your testicles, nipples, or piercings.
5. Stairs are popular, the hand rails are usually very strong and unfinished stairs give you all kinds of tie points.
6. Sometimes a shower or a tub has a handle you can tie to.
7. If you are fortunate enough to have a garage, you can actually use your car as an anchor, I've go a few ideas for my trailer hitch.
8. I've used my bedposts a few times.
Check out this chair in the attached pictures.
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