[Walmart] Philips Sonicare HealthyWhite + electric toothbrush, $29 in-stores, YMMV

There is no online stock, but a few stores show some availability.
The price dropped from $59 to $29 just today so tags might not be updated yet, but will scan at clearance price. Regular price is $119.98. Amazon listing to compare (lowest ever was $74.99)
You can check Walmart availability here: https://stocktrack.ca/?s=wm&upc=7502004888
*Walmart sets status automatically to OOS when stock count drops to 3 or less. The actual availability is YMMV.

Philips E-Series HX7022/64 Standard Sonic Toothbrush Heads can also be found on clearance for $9 (reg. $37.97):
https://stocktrack.ca/?s=wm&upc=7502002698

Oral-B Genius 8000 Electric Rechargeable Toothbrush Powered by Braun dropped to $90 in-stores, was $140 previously (reg. $280), there is a thread about this deal when price was $140
https://stocktrack.ca/?s=wm&upc=6905512594

Also, related:
Equate™ Kids Clean+ Battery Operated Toothbrush Kit $1 (reg. $11.97):
https://stocktrack.ca/?s=wm&upc=62891583693
Colgate 360 Optic White Battery Toothbrush, Soft $1 (reg. $9.27):
https://stocktrack.ca/?s=wm&upc=5800031051
Oral-B Kid’s Battery Power Toothbrush Featuring Disney Princess Characters $1 (reg. $7.96):
https://stocktrack.ca/?s=wm&upc=6905583313

As always, don’t use stocktrack as an argument when talking with Walmart CSR, use it as your own reference only. The price it shows is the price it will scan in store, actual availability may vary, depending on location.
Good luck!