[QUOTE]Mind you it's been 20 years since I've played/designed anything with the 555 timer so can't suggest anything off the bat.
I couldn't but help have a
on my face when the 555 timer was mentioned. Its been nearly 20yrs too since I last mucked around with one of those or the LM3909 to build a flashing LED. They made a great fake car alarms back in those days!!!!