Looking at robotics competitions from years past with similar game elements can be a good source of inspiration.

VRC Round UP (2010-2011)

Round Up is the most similar to Tipping Point, with teams scoring rings on tippable mobile goals. We could use all of the following designs in Tipping Point.

5812B Ring Conveyor

This team used a “c-shaped” conveyor system with tank tread flaps to pick up the rings:

2931C “Needle” Ring Intake

This team used a “needle” type intake that pokes into the opening of the ring. The needle has sets of sprockets that rotate to bring the ring up the needle:

3018 “Sleeve” Ring Intake

This team used a design similar to 2931C, but with the sprockets on the outside of the rings instead of the inside:

VRC Skyrise (2014-2015)

118 Hooked Conveyor

This team used a slanted conveyor with hooks for holding Skyrise cubes. We could make similar hooks for moving Rings.

VRC In the Zone (2017-2018)

Much like Tipping Point, In the Zone had Mobile Goals, Zones to score the Mobile Goals, and an abundance of elements to score on the Mobile Goals. A significant difference is that Tipping Point now has Mobile Goals that can score for either Alliance.

5225A Tipping Opposing Alliance Mobile Goals

In the World Finals Matches, this team tipped over the opposing Alliance's Mobile Goals a handful of times, which was difficult for the opposing Alliance to undo:

6627A Lift Rubber Banding

This team used an interesting method of rubber banding their heavy lift, which could be useful.

“Antichamber” Drivetrain / Mobile Goal Lift transmission

User “Antichamber” posted a video of a drivetrain and Mobile Goal lift each powered by the same motors. This could be very useful for us if we want a motor-powered Mobile Goal lift without needing to use any extra motors. This design of grabbing Mobile Goals from the plastic rims is also viable in Tipping Point.

When the motors on each side spin in the same direction, the drivetrain drives. When they spin in opposite directions, the lift moves.

8059 Double Mobile Goal Lift

This team used a Mobile Goal lift design very similar to many other In the Zone teams, but it could hold two Mobile Goals:

VIQC Ringmaster (2017-2018)

Ringmaster involves scoring rings onto poles, similar to Tipping Point.

12580F

This team (along with most successful Ringmaster teams) used poles for storing different colored rings. To score the rings, they would rotate the poles to dump the rings off. While sorting Rings is not important in Tipping Point, this method might be useful for storing and scoring.

21549A Conveyor Ring Intake

Similar to VRC Round Up team 5812B, this team used an tread conveyor to scrape rings off the ground and lift them up the robot:

FTC Ultimate Goal (2020-2021)

While very different from Tipping Point, this game involved the manipulation of rings.

Kuriosty Robotics Indexer

This team appears to have used rubber-band-like tank treads for moving rings within the robot. The fact that these treads appear to deform well likely helps control the rings in any position.

VRC Tipping Point (2021-2022)

Game Reveal Video Example Robot

The robot shown in the Tipping Point game announcement video had a very simple mechanism for holding Mobile Goals, that appeared to be powered with only one motor: