My first shots at puzzle-making:

[Nic]

For gicysuz:pygemof

[Hand-E-Food]

These are really good puzzles!  I'm looking forward to giving the first two a go.

Synchronization: vibunoz: betonat
Counting Crates: gicysuz: bihiryg

[LilFaery]

Thanks for the nice comments all. =)

New puzzle:  sydivev

[SM]

No one said it had to be pretty...

Sydivev solution

byduhav

[jnz]

My solution for Swapping (sydivev): mitubog

[Djonn]

My solution to sydivev:sasabyh
(by the times the crates go down the four downward pipes in the middle everything is already sorted, bug I got a little carried away).

[Lazyone]

for  sydivev my solution is mazufyg and a second solution that is alittle bit cleaner desubod

[Daniel Nilsson]

Here is how I solved them:
xykatoc: Solution to ThreeCs. Simple but painfully slow.
buvamuz: Solution to Synchronization. Very much like the others.
rutetig: Solution to Swapping. Timing is everything.

[adept]

Adept  your solution doesn't solve for 2 or 0 xynidav

that is why I should not post until I've slept after "solving" one of these. 
syrepas fixed those issues.

Sydivev : midevac

[Lazyone]

syrepas looks good. It wasnt that i was checking it before, it just happened to be a 2 for the random number.

[20eight]

Daniel,

xykatoc is brilliant

[Hand-E-Food]

Another fun quickie!

Swapping: sydivev: tavutis

And for the first one...

Generic Pit: raboziv: furaruk