Simple games are often the best, and the games of the Regency involving sticks, balls and string were often simple indeed. But they were old games, sometimes ancient, and they required great skill to become really proficient.
Ringtoss, in its outdoor versions called quoits or hoopla, is a basic game--toss a ring in the air and catch it on a stick. It had its origins in ancient Greece, and this illustration from 1815 shows how charming it looked played in the Regency.
The 'devil on two sticks', later called diabolo, had its origins in ancient China where it evolved from the Chinese yo-yo. It enjoyed a resurgence of popularity just a few years ago, but as you can see, ladies of the Regency era (this illustration is Parisian 1815) found it amusing also. Official rules did not appear until 1881, but numerous tricks can be performed by a proficient user of the sticks.