your best bet would be to buy the ashtray rebuild kit from any number of vendors, there are a few that offer it...
On mine I used two small magnets and double sided 3m tape.. it holds it closed, and it slips open easily
__________________ 1992 Mustang LX hatchback.. 1 of 542 black on black 2003 Regal GS - the beater/daily driver - somewhat stock. No its not a mustang, at least it's blown.