I ordered all the parts I need for a "small" project - a clock.
104 DPDT relays , loads of diodes, LEDs, trimpots, transistors - everything added up about 1275 parts to put together.
I will put the relays into sockets, just in case it doesnt work out, since relays are not easy to desolder with the limited tools I have without damaging them.
I'm planning on using a 555 to generate a 1Hz signal for now, maybe I'll find a way to generate it reliably with relays and capacitors.
Everything will be on perfboard, with loads of wires.
The hard part will be adjusting the timing, so everything keeps going smooth, there will be 50 trimpots to adjust! I decided to do this since I can't trust the ratings of those cheap chinese relays, the capacitors varying in capacity. Maybe, if I ever get to do it again, I can replace the trimpots with resistors - making it a little bit cheaper to make.
I will try to make one or more videos of the construction, adjustment and everything else.
If all fails, I'll have 115 relays to play around with

I have made progress though - I managed to build the key element of the design, the delay circuit, which delays the turn on of the second relay once the first one is powered on. It worked well and was easy to adjust. It also allowed me to get a general idea at which resistance the trimpot should be set before putting it into the circuit, also, which is a big concern, the size of everything on the perfboard.
So now, I just have to wait for everything to arrive, sadly I can't do anything until everything is here.
If anyone is interested, I will upload some pictures of the circuit design, and a list of things I ordered for this.
A long time ago I found a program that allows to build circuits on perfboard, route the "cables" and everthing, although I don't know how comprehensable it is for anyone else.
I will keep you updated!