Dndbeyond does not keep the properties of container items as far as I can figure, so add a bag of holding to your inventory, rename it Wisp Wallet with the customization menu, and add this item or the notes from this item to it so you have the reference. Only place Wisp Sticks in this area of your inventory.

This wallet has an interior space  larger than its outside dimensions, roughly 3 inches wide at the top and 5 inches deep. The wallet can hold up to 24 Wisp Sticks. The wallet weighs 1 pound, regardless of its contents. Retrieving an item from the wallet can be done as a free item interaction (unless otherwise stated by your GM)

Notes: Wisp Stick Rules: Each stick takes an action to use, and each one lasts for 1 hour or until all charges are used. Even non casting classes can utilize these. You may only have 2 wisp sticks active at any time safely. Activating a 3rd will cause the Overdose status for 1 hour. All Wisp Sticks have slightly harmful after effects that vary based on the flavor. After effects can be avoided by passing a save. Wisp Sticks come with Wisp Wallets, that act similarly to bags of holding but can only contain Wisp Sticks. After Effects: Make a DC10 constitution saving throw, adding 5 to this DC for each Wisp Sticks effect you were under at the time. On a failed save you will be under an after effect for 1 hour or until removed by Dispel Magic. Overdose: Take 1 level of exhaustion, and the poisoned status. (Lose 10 feet of movement while poisoned in this way)The exhaustion and lost movement increases by these values for every overdose you stack within the duration. You will recover from the poison after an hour or if removed by a spell or potion. Exhaustion remains until a long rest or until it is also magically or alchemically treated. Non-Caster Classes: Any class without natural spellcasting will instead use only their proficiency bonus when determining spell save dc, spell attack modifier, or spell modifier. This keeps the items viable for anyone to make use of. [DISCLAIMER] The original idea for these came from LuckyInks on patreon. The great majority of effects listed on them are my own ideas but please support the original creator if you like these items. I drew inspiration from many sources but they gave me the original spark of creativity., Utility, Container, Outerwear