My bromeliad knowledge is very limited, but I've never seen or heard anything about dangerous bromeliad. I hope someone else can confirm the non-dangerousness of the bromeliads for you!

If you want some advice on other plants to use, here's a quote from another thread. You can find tons of threads on the plant topic if you do a quick search.

Photos - They grow like crazy, sometimes a few centimeters a day. They are almost impossible to kill, thrive in frog terrariums and provide excellent climbing space.

Bromeliads: Air plants, so they do not need to be planted in the soil, but can be placed in the background or anywhere.

Snake plants: Extremly sturdy plants that provide excellent sleeping plants.

Creeping fig: Grows alot and provide alot of climbing space.

Ficus: Some have alot of small plants, other have fewer really big sturdy plants.