From the Super Mario Wiki
A Glue Globe is an orange sphere in Wario World. When Wario touches it, he will stick onto it, allowing him to reach otherwise inaccessible places. Some Glue Globes move, while others stay floating in the air without moving. Wario then can jump off in the direction of where he was on the globe. There are also Glue Globes that have ByeBye Balloons on them. When Wario jumps on these Glue Globes, he will be sent to the start or the end of the level, depending on where he is. Wario, through the game manual, says that it is very embarrassing being on Glue Globes.