[BrianG]

That vid was full of crappy advice. Thermal paste is only marginally "sticky", electrical taped pennies do not transfer heat that well (but apparently better than band-aids), penny surface is irregular, and regular silicone paste is not going to damage components if it gets on the mobo.

Just get some aluminum the same thickness as the bandaids, trim them to size, and thermal epoxy to the chips. Or if you want to remove them at a later time, use the very thin thermal pads.