( whose fault is that! he can't even escape unless he starts to crawl like a worm, and he does pull to drag them along underneath the table, but he struggles with added weight... )

They're both good choices... purple with orange seashells, then we can have both.

( painting plastic seashells also seems like an activity, now he continues: )

It's important we make them a little bedding inside too, so they don't stray too far away!