I don’t even have a large chest and even medial tape is suuuuuper uncomfortable to me. Couldn’t imagine the sensory horror of duct tape. But for those who don’t have this sensory issue, this fabricy medical tape stuff from the pharmacy/drugstore costs about the same as duct tape, which is much less than actual binding or breast tape*, and it’s skin safe.
*I’m assuming binding tape and breast tape are more or less the same, except the former is advertised to AFAB trans people and the latter to cis women. Both are pretty expensive.
Binding your chest with tape is an established thing that can be safe. Safer than a wearable binder even, since it doesn’t compress your entire rib cage. It can also be left on for a few days at a time. But duct tape is just about the least skin safe tape you could use for that.
If this is of interest to anyone, there’s purpose made binding tape. If you find that too expensive, get some of that breathable fabric medical tape from the pharmacy/drugstore.