[Goosegirl]

I'm about to plant out my antirrhinums and lobelia plants that I put into modules. When I have done this and upended one side I find that some of the others either fall out or get a bit squashed by the tray. Today I am going to try out using a shoe horn as it is smaller in size that a bulb trowel and they should come out much easier. Whaddya you think?

[whaleroad]

I use a weed membrane peg. Use it like tongs. Saw someone doing it on instagram and it changed my life.

[mrs bouquet]

I push gently with a pencil and squeeze them a bit, then hope for the best.   Mrs Bouquet

[Goosegirl]

MB, that's what I used to do but the module tray is so flimsy that if I get my hand underneath and squeeze the whole lot might fall out! 

[hasbeans]

I've had some success with kebab skewers from underneath.  Make sure the soil is moist, it helps unglue them

[Alank]

I tend to try and use the better quality ones and don't leave the seedlings in until the roots are pushing through the drain holes.
Made the mistake of using some cheep flimsy ones which were OK in the first year but became very brittle over time and basically had to destroy the cell trays to get the plants out.
Lesson learned 

[Goosegirl]

Same here. Hate the flimsy ones as they are an absolute pain but don't know where to get decent ones on-line.