My kids are proud of this one. Tow reds side by side in the middle. (hence the 2 lovers)
Result is : B-R-B-R-B-R-B-R-R-B-R-B-R-B-R
Start with 8 blues and 8 Red
see picture for starting grid, the blue bits are well positioned
You may use:
22 green ramps
2 purple gear bit
1 red gear