#3 Thread-ways-wise Again with the "B. M." or any of similar consideration, and this WERE using 'wrappers' into "designs"/"uniform"/"colours" distinction from them. First, gather whatever kinds you can amass for these, then, "coat" the 'figurine' with some 'liquid plastic' substance and I prefer 'Varathane' of the 'Pint=sized' CAN amount FOR "dipping" pieces into that, several times even. This 'stuff' will also thicken/strengthen whatever does receive such 'prep`n'. FOR 'Metal/Weird Plastic/etc. it shall provide 'Primer' layer of which 'Paints' should adhere BEST.
The quicker 'method' for "decorating" figures WERE 'pasting wrappers' UPON instead of 'Painting', maybe tinier 'parts' fine. L@@K towards 'Halloween' and "Candy Wrappers" of abounds--NOT 'Almond Joy', nor 'Mounds', sorry.