Sorry to keep you hanging.
Sponsoring is difficult. It starts with begging for money, fans or former members will give you some money.
Next is thinking form the sponsors perspective: what does he gets out of it? Things we are doing:
attach the sponsors name to the club: the actual name, letterheads, boarding around the pitch
connect the sponsor to the positive aspects of rugy: respect etc. The sponsor can advertise with that
sponsors events: for his employees of his clients: sponsor diners, teambuilding sessions etc. You will be amazed how much outsiders actually enjow throwing a rugby ball around!!
Be careful: make somebody in the club responsible for the relation, do not "disappear" after you received the cash...
Does this help?