gemstone gene-splicing - Living jewlery.

bravado break - Time off for bungee-jumpers.

incognita incontinent - For ladies who just have to go right now.

premonitorily prerequisite - Read the syllabus before you take the class.

ingrain initiation - 'Hell-week' for pledging frat boys.

momento money - A penny found away, on holiday.

I thought I *owed someone some hyphens...