15xNE555 (was before I discovered TLC555)What about transistors? NPN and PNP... I assume you have no problem finding resistors and caps, and perhaps 555s, right?
15xTLC555 (3 in breadboards)
15xNE556
15xTLC556
wide range of caps from 0.022uF upto 4700uF
wide range of resistors 68 values with stock ranging from 5 to 20 (1R to 1M1)
wide range of diodes SR360, 1N5817, 1n4148, BAT85, 1N4007, 1N5402,1N5822 3 to 20 of each
9.5V 0.4A tranformers x2
transistors:
2N3904, 2N3906 approx 15 of each
MJE3055, MJE2955 x4 each
BC327 x10
2N2222 x4 (I thought I had more of them!)
inductors
100uH 3A
150uH 4A
various POTS and 2 LDRs (10K I think)