I dont have the motivation yet to write a whole fic so I'm gonna make a short list of ideas and headcanons to help
Zoot sleeps long hours in the night. If left undisturbed, he'll sleep between 10 - 12 hours, but given that that's not healthy and the band knows he actually enjoys being awake for breakfast, one of them will usually wake him up before then. But he's a heavy sleeper so they might have to resort to drastic measures
Floyd loves to take naps or just relax by laying on top of Janice. He's not heavy and she likes the weight and to play with his hair. It's also common for one of them to trap the other in this position for a bit of mischief, and it's a 50/50 chance whoever starts it. Janice might squirm and fight back but Floyd kinda just lays there and takes it, burying his face into her chest (he likes it)
Teeth is the biggest and most feared ler of the group. He's very skilled at tickling, given he has a lot of practice playing the piano, not to mention he has long, stretchy arms. He'll snatch you up quick
People already have a hard time understanding Lips when he talks normally, but when he's babbling incoherently when being tickled, not even his Mayhem family can catch what he's saying, which opens him up to a lot of teasing. "All ya gotta do is tell us to stop and we will!" "What? I didn't quite catch that, can ya speak a little clearer?" This is why when he's truly had enough, he's learned to physically tap out to tell them to stop.
Zoot has the worst memory and Floyd likes to be mean about it and tickle him for information he doesn't have because he forgot it. "What do you mean 'I dunno??' You were there! We told you! I'm startin' to think you're fibbin'." "I'm nohohot! Ihi'm nohohot!"
The band is super close so it's not uncommon for them to mess with each other on stage, and their fans are well aware of this. It's usually Floyd walking around the stage and causing mischief, like digging his fingers under Teeth's arms to mess him up on the piano, then to dart away before his friend can turn and swat at him. Dangerous game, since Teeth is such a vicious ler and WILL hunt him down after their show and Janice will not help him since he started it.