You will need:
- a new lipstick
- a vintage lipstick case (I won mine on eBay!)
- a teaspoon handle, or similar; the flatter and thinner, the better
- an eggcup/ shot glass
- kitchen towel
- antibacterial soap, warm water and a nailbrush
- a freezer or icebox
- a wipe-clean surface!
Step 1: remove and dispose of whatever's left of the original lipstick from the vintage case and wash it really, really, really well in warm water with antibacterial soap and gently scrub every millimetre in circular motions with the nailbrush. Peel the tag off the bottom, if there is one. Rinse in cool water and dry very thoroughly with kitchen towel.
Step 2: carefully remove your new lipstick from its case with the teaspoon handle and place it gently in the eggcup (I was using one of my older lipsticks for the purposes of experimentation, hence it's so short).
Step 3: put the egg cup in the freezer overnight.
Step 4: gently but firmly insert the frozen lipstick into the vintage case, making sure it's straight by slowly extending and retracting it. Leave it standing upright while it thaws out.
Step 5: make any final adjustments to ensure that the lipstick is properly attached to the vintage case, wipe off any stray lipstick smears with kitchen towel, et voila!
Step 6 (optional extra): carefully peel the tag off the original case and attach it to the bottom of the vintage case to remind you which colour is in there.