flower bricks and bulb bowls

I'm interested in anything that can be used to grow bulbs indoors.

The bulb bowls with lids with holes seem to be straightforward enough. The bulbs (crocus or hyacinth, depending on size of the holes) go in the holes on top. How does one use a flower brick? The large hole seems perfect for a crocus bulb but I'm not sure if they were made for that or were just made for cut flowers. I managed to find a few spent bulbs to show a comparison of the hole sizes.

The main question with the bulb bowls is whether to put the bulbs on top of the lid or underneath. I think they were made for the bulbs to go on top. Before I knew that I put them underneath. Both methods have their pros and cons.

The empty hole (below) was because the crocus bulb dropped down as it was a bit small. The largest bulbs are required to sit on top. Some roots can also be seen around the edge of the bulbs preventing them from sitting neatly in the holes.

The bowl below looks quite neat with the bulbs beneath the lid but that isn't always the case as in the pic below that as it shows how multiple stems can be a tight fit in the holes and the roots push the bulbs up, dislodging the lid.

I'd love to see how these ceramic items were actually used rather than my attempts. If anyone can direct me to paintings that feature them, it would be great, thanks (julie @ gardenwithindoors.org.uk).

I'm not sure if this was made for cuttings or bulbs or either. I'm going to use it for small bulbs.

And of course one can use small pots for small bulbs indoors. Below are a couple purchased recently at the front and a couple of vases and the bulb bowls and flower bricks for size comparison.