by taking your old worn stock engine mounts and filling them with a polyurethane to restore them. been searching around about ordering new engine mounts and a local guy filled his with a polyurethane caulk. made them stiffer and pretty much restored them. this would cost about $10 or so.
another option is using 3m window weld. this seems to be very popular with the honda dsm crown up to diesel truck owners. cost is about $8
another option is going all out and getting flexane 80 or 94 and mixing it up and molding your own or filling the mounts. cost is around $50. kinda hard to find. this is probably way more durable and can be very stiff.
filled with flexane
i am going to try the polyurethane caulking first. i really want to go with the flexane 80 but dont feel like waiting. i will keep this updated on what i do.